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systemd-stable/udevinfo.c

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/*
* udevinfo - fetches attributes for a device
*
* Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
#include <ctype.h>
#include <stdarg.h>
#include <unistd.h>
#include <errno.h>
#include "libsysfs/sysfs/libsysfs.h"
#include "libsysfs/dlist.h"
#include "udev.h"
#include "udev_version.h"
#include "logging.h"
#include "udevdb.h"
# define SYSFS_VALUE_MAX 200
char **main_argv;
int main_argc;
#ifdef LOG
unsigned char logname[42];
void log_message (int level, const char *format, ...)
{
va_list args;
va_start(args, format);
vsyslog(level, format, args);
va_end(args);
}
#endif
static int print_all_attributes(const char *path)
{
struct dlist *attributes;
struct sysfs_attribute *attr;
struct sysfs_directory *sysfs_dir;
char value[SYSFS_VALUE_MAX];
int len;
int retval = 0;
sysfs_dir = sysfs_open_directory(path);
if (sysfs_dir == NULL)
return -1;
attributes = sysfs_get_dir_attributes(sysfs_dir);
if (attributes == NULL) {
retval = -1;
goto exit;
}
dlist_for_each_data(attributes, attr, struct sysfs_attribute) {
if (attr->value != NULL) {
strfieldcpy(value, attr->value);
len = strlen(value);
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
if (len == 0)
continue;
/* remove trailing newline */
if (value[len-1] == '\n') {
value[len-1] = '\0';
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
len--;
}
/* skip nonprintable values */
while (len) {
if (isprint(value[len-1]) == 0)
break;
len--;
}
if (len == 0)
printf(" SYSFS{%s}=\"%s\"\n", attr->name, value);
}
}
printf("\n");
exit:
sysfs_close_directory(sysfs_dir);
return retval;
}
/* callback for database dump */
static int print_record(char *path, struct udevice *dev)
{
printf("P: %s\n", path);
printf("N: %s\n", dev->name);
printf("M: %#o\n", dev->mode);
printf("S: %s\n", dev->symlink);
printf("O: %s\n", dev->owner);
printf("G: %s\n", dev->group);
printf("\n");
return 0;
}
enum query_type {
NONE,
NAME,
PATH,
SYMLINK,
MODE,
OWNER,
GROUP,
ALL
};
static int print_device_chain(const char *path)
{
struct sysfs_class_device *class_dev;
struct sysfs_class_device *class_dev_parent;
struct sysfs_attribute *attr;
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
struct sysfs_device *sysfs_dev;
struct sysfs_device *sysfs_dev_parent;
int retval = 0;
/* get the class dev */
class_dev = sysfs_open_class_device_path(path);
if (class_dev == NULL) {
printf("couldn't get the class device\n");
return -1;
}
/* read the 'dev' file for major/minor*/
attr = sysfs_get_classdev_attr(class_dev, "dev");
if (attr == NULL) {
printf("couldn't get the \"dev\" file\n");
retval = -1;
goto exit;
}
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
printf("\ndevice '%s' has major:minor %s", class_dev->path, attr->value);
sysfs_close_attribute(attr);
/* open sysfs class device directory and print all attributes */
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
printf(" looking at class device '%s':\n", class_dev->path);
if (print_all_attributes(class_dev->path) != 0) {
printf("couldn't open class device directory\n");
retval = -1;
goto exit;
}
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
/* get the device link (if parent exists look here) */
class_dev_parent = sysfs_get_classdev_parent(class_dev);
if (class_dev_parent != NULL) {
//sysfs_close_class_device(class_dev);
class_dev = class_dev_parent;
}
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
sysfs_dev = sysfs_get_classdev_device(class_dev);
if (sysfs_dev != NULL)
printf("follow the class device's \"device\"\n");
/* look the device chain upwards */
while (sysfs_dev != NULL) {
printf(" looking at the device chain at '%s':\n", sysfs_dev->path);
printf(" BUS=\"%s\"\n", sysfs_dev->bus);
printf(" ID=\"%s\"\n", sysfs_dev->bus_id);
/* open sysfs device directory and print all attributes */
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
print_all_attributes(sysfs_dev->path);
sysfs_dev_parent = sysfs_get_device_parent(sysfs_dev);
if (sysfs_dev_parent == NULL)
break;
//sysfs_close_device(sysfs_dev);
sysfs_dev = sysfs_dev_parent;
}
[PATCH] udev - udevinfo with device chain walk udevinfo is now capable to print "all" attributes along the device chain of a sysfs device. Just like udev itself it walks the chain upwards and prints all usable attributes in the udev key format. So it should be easy to find unique attributes to compose a rule. All multiline attribute values and values containing non printable characters are skipped now. I hope nothing useful gets lost with this :) NOTE: The BUS value corresponding with the attributes is printed for every device. Don't specify BUS= in a rule and mix SYSFS_attributes from different busses, the rule can't match. ./udevinfo /sys/block/sda/sda1 device '/sys/block/sda/sda1' has major:minor 8:1 looking at class device '/sys/block/sda/sda1': SYSFS_dev="8:1" SYSFS_start="32" SYSFS_size="160" SYSFS_stat=" 0 0 0 0" follow the class device's "device" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32/32:0:0:0': BUS="scsi" ID="32:0:0:0" SYSFS_detach_state="0" SYSFS_type="0" SYSFS_model="USB 2 HS-CF" SYSFS_vendor="SMSC " SYSFS_max_sectors="240" SYSFS_device_blocked="0" SYSFS_queue_depth="1" SYSFS_scsi_level="3" SYSFS_rev="1.25" SYSFS_online="1" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0/host32': BUS="" ID="host32" SYSFS_detach_state="0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3/1-1.3:1.0': BUS="usb" ID="1-1.3:1.0" SYSFS_detach_state="0" SYSFS_bInterfaceNumber="00" SYSFS_bAlternateSetting=" 0" SYSFS_bNumEndpoints="02" SYSFS_bInterfaceClass="08" SYSFS_bInterfaceSubClass="06" SYSFS_bInterfaceProtocol="50" SYSFS_iInterface="00" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.3': BUS="usb" ID="1-1.3" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="80" SYSFS_bMaxPower=" 96mA" SYSFS_idVendor="0424" SYSFS_idProduct="20fc" SYSFS_bcdDevice="0125" SYSFS_bDeviceClass="00" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="SMSC" SYSFS_product="USB 2 Flash Media Device" SYSFS_serial="0305037000C2" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1/1-1': BUS="usb" ID="1-1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="e0" SYSFS_bMaxPower=" 64mA" SYSFS_idVendor="03eb" SYSFS_idProduct="3301" SYSFS_bcdDevice="0300" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_product="Standard USB Hub" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0/usb1': BUS="usb" ID="usb1" SYSFS_detach_state="0" SYSFS_bNumConfigurations="1" SYSFS_bNumInterfaces=" 1" SYSFS_bConfigurationValue="1" SYSFS_bmAttributes="40" SYSFS_bMaxPower=" 0mA" SYSFS_idVendor="0000" SYSFS_idProduct="0000" SYSFS_bcdDevice="0206" SYSFS_bDeviceClass="09" SYSFS_bDeviceSubClass="00" SYSFS_bDeviceProtocol="00" SYSFS_speed="12" SYSFS_manufacturer="Linux 2.6.2-rc1-p4 uhci_hcd" SYSFS_product="UHCI Host Controller" SYSFS_serial="0000:00:1d.0" looking at the device chain at '/sys/devices/pci0000:00/0000:00:1d.0': BUS="pci" ID="0000:00:1d.0" SYSFS_detach_state="0" SYSFS_vendor="0x8086" SYSFS_device="0x2482" SYSFS_subsystem_vendor="0x1014" SYSFS_subsystem_device="0x0220" SYSFS_class="0x0c0300" SYSFS_irq="9" looking at the device chain at '/sys/devices/pci0000:00': BUS="" ID="pci0000:00" SYSFS_detach_state="0"
2004-01-23 14:01:02 +03:00
sysfs_close_device(sysfs_dev);
exit:
//sysfs_close_class_device(class_dev);
return retval;
}
static int process_options(void)
{
static const char short_options[] = "adn:p:q:rVh";
int option;
int retval = 1;
struct udevice dev;
int root = 0;
int attributes = 0;
enum query_type query = NONE;
char result[NAME_SIZE] = "";
char path[NAME_SIZE] = "";
char name[NAME_SIZE] = "";
char temp[NAME_SIZE];
char *pos;
/* get command line options */
while (1) {
option = getopt(main_argc, main_argv, short_options);
if (option == -1)
break;
dbg("option '%c'", option);
switch (option) {
case 'n':
dbg("udev name: %s\n", optarg);
strfieldcpy(name, optarg);
break;
case 'p':
dbg("udev path: %s\n", optarg);
strfieldcpy(path, optarg);
break;
case 'q':
dbg("udev query: %s\n", optarg);
if (strcmp(optarg, "name") == 0) {
query = NAME;
break;
}
if (strcmp(optarg, "symlink") == 0) {
query = SYMLINK;
break;
}
if (strcmp(optarg, "mode") == 0) {
query = MODE;
break;
}
if (strcmp(optarg, "owner") == 0) {
query = OWNER;
break;
}
if (strcmp(optarg, "group") == 0) {
query = GROUP;
break;
}
if (strcmp(optarg, "path") == 0) {
query = PATH;
break;
}
if (strcmp(optarg, "all") == 0) {
query = ALL;
break;
}
printf("unknown query type\n");
exit(1);
case 'r':
root = 1;
break;
case 'a':
attributes = 1;
break;
case 'd':
retval = udevdb_open_ro();
if (retval != 0) {
printf("unable to open udev database\n");
exit(2);
}
udevdb_call_foreach(print_record);
udevdb_exit();
exit(0);
case 'V':
printf("udevinfo, version %s\n", UDEV_VERSION);
exit(0);
case 'h':
retval = 0;
case '?':
default:
goto help;
}
}
/* process options */
if (query != NONE) {
retval = udevdb_open_ro();
if (retval != 0) {
printf("unable to open udev database\n");
return -EACCES;
}
if (path[0] != '\0') {
/* remove sysfs_path if given */
if (strncmp(path, sysfs_path, strlen(sysfs_path)) == 0) {
pos = path + strlen(sysfs_path);
} else {
if (path[0] != '/') {
/* prepend '/' if missing */
strfieldcat(temp, "/");
strfieldcat(temp, path);
pos = temp;
} else {
pos = path;
}
}
retval = udevdb_get_dev(pos, &dev);
if (retval != 0) {
printf("device not found in database\n");
goto exit;
}
goto print;
}
if (name[0] != '\0') {
/* remove udev_root if given */
if (strncmp(name, udev_root, strlen(udev_root)) == 0) {
pos = name + strlen(udev_root);
} else
pos = name;
retval = udevdb_get_dev_byname(pos, path, &dev);
if (retval != 0) {
printf("device not found in database\n");
goto exit;
}
goto print;
}
printf("query needs device path(-p) or node name(-n) specified\n");
goto exit;
print:
switch(query) {
case NAME:
if (root)
strfieldcpy(result, udev_root);
strfieldcat(result, dev.name);
break;
case SYMLINK:
strfieldcpy(result, dev.symlink);
break;
case MODE:
sprintf(result, "%#o", dev.mode);
break;
case GROUP:
strfieldcpy(result, dev.group);
break;
case OWNER:
strfieldcpy(result, dev.owner);
break;
case PATH:
strfieldcpy(result, path);
break;
case ALL:
print_record(path, &dev);
goto exit;
default:
goto exit;
}
printf("%s\n", result);
exit:
udevdb_exit();
return retval;
}
if (attributes) {
if (path[0] == '\0') {
printf("attribute walk on device chain needs path(-p) specified\n");
return -EINVAL;
} else {
if (strncmp(path, sysfs_path, strlen(sysfs_path)) != 0) {
/* prepend sysfs mountpoint if not given */
strfieldcpy(temp, path);
strfieldcpy(path, sysfs_path);
strfieldcat(path, temp);
}
print_device_chain(path);
return 0;
}
}
if (root) {
printf("%s\n", udev_root);
return 0;
}
help:
printf("Usage: [-anpqrdVh]\n"
" -q TYPE query database for the specified value:\n"
" 'name' name of device node\n"
" 'symlink' pointing to node\n"
" 'mode' permissions of node\n"
" 'owner' of node\n"
" 'group' of node\n"
" 'path' sysfs device path\n"
" 'all' all values\n"
"\n"
" -p PATH sysfs device path used for query or chain\n"
" -n NAME node/symlink name used for query\n"
"\n"
" -r print udev root\n"
" -a print all SYSFS_attributes along the device chain\n"
" -d dump whole database\n"
" -V print udev version\n"
" -h print this help text\n"
"\n");
return retval;
}
int main(int argc, char *argv[], char *envp[])
{
int retval;
main_argv = argv;
main_argc = argc;
init_logging("udevinfo");
/* initialize our configuration */
udev_init_config();
retval = process_options();
if (retval != 0)
exit(1);
exit(0);
}