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These patches enable usb autosuspend for the qemu emulated HID devices.
This reduces the cpu load for idle guests with a hid device attached
because the linux kernel will suspend the usb bus then and qemu can stop
running a 1000 Hz to emulate the (active) UHCI controller.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Pressing Escape will only actually work if keymap is currently examining the
primary keyboard. For other devices the user needs to press Control-C instead.
Some drivers, like thinkpad_acpi, do not send a scan code at all (for known
keys), and some send the key code first, then the scan code. Implement a better
state machine which acceps them in any order and wait until a SYN event. If the
driver does not send SYN events, keymap will also handle this and print out
that fact.
Thanks to Seth Forshee for pointing out how this really works!
https://launchpad.net/bugs/702407
Currently, Eee PC have a hotkey that generates KEY_F13 but this
will soon change to KEY_TOUCHPAD_TOOGLE. Both cases do not
work well with X.
X has defined F21 for the purpose of touchpad toggle and other
udev keymaps align with this meaning. Patch aligns Eee PC
hotkey drivers with F21.
Tested on Eee PC 1005PE using both eeepc-wmi and eeepc-laptop driver
(with acpi_osi="!Windows 2009").
Signed-off-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
We need to preserve the database of network interfaces while we
rename them. Use the kernel's numbers wherever possible, instead
of the device names.
Fix wrong database filenames which contain a '/', translated
from '!' in the kernel name.
Fix segfault for kobject pathes where the subsystem can not be
determined from sysfs.
The output will always be quoted:
$ udevadm info --export --export-prefix=MY_ --query=property --name=sda
MY_UDEV_LOG='3'
MY_DEVPATH='/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda'
MY_MAJOR='259'
MY_MINOR='0'
MY_DEVNAME='sda'
MY_DEVTYPE='disk'
MY_SUBSYSTEM='block'
The bsg devices node are created after the LUN, so we fail in the
hotplug case, but succeed at coldplug, and create inconsistent data
that way.
The bsg device event order will need to be sorted out, by changing the
kernel.
Originally we added an ACL for some particular mobile phone product IDs to
enable users to run e. g. the Android SDK as non-root. This was removed in
232f180 as we don't want to maintain product/vendor ID lists in udev.
However, we already know from media-player-info that devices like this are
media players. There is little reason to deny user access to those, so add back
a generic rule which adds an ACL to media player raw USB devices.
https://launchpad.net/bugs/316215
We'll need to standardise on the Touchpad related keys in udev, kernel, and
X.org. I selected F21 for XF86TouchpadToggle, F22 for XF86TouchpadOn and F23
for XF86TouchpadOff.
See:
https://bugs.freedesktop.org/show_bug.cgi?id=31333
Signed-off-by: Martin Pitt <martin.pitt@ubuntu.com>
The major benefit here, is that we get the ATAPI device serial
number. With SCSI ID we didn't get this since it's not part of the
SCSI INQUIRY command. Specifically this means that we get symlinks to
empty optical drives, e.g.
/dev/disk/by-id/ata-VBOX_CD-ROM_VB2-01700376
which we didn't get earlier. So this is a major win.
Also make ata_id work on CD-ROM devices when using /dev/bsg nodes so
this works on both the scsi_device as well as the block device. We do
this, basically, by issuing the ATA IDENTIFY PACKET DEVICE command
instead of the ATA IDENTIFY command. We also use 16-byte pass-through
ATA passthrough instead of 12-byte passthrough to avoid clashing with
the MMC BLANK command.
This means that we get this output
# udevadm info -q all -p /sys/devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
P: /devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
E: UDEV_LOG=3
E: DEVPATH=/devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
E: DEVTYPE=scsi_device
E: DRIVER=sr
E: MODALIAS=scsi:t-0x05
E: SUBSYSTEM=scsi
E: ID_ATA=1
E: ID_TYPE=cd
E: ID_BUS=ata
E: ID_MODEL=VBOX_CD-ROM
E: ID_MODEL_ENC=VBOX\x20CD-ROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x 20\x20\x20\x20\x20\x20\x20
E: ID_REVISION=1.0
E: ID_SERIAL=VBOX_CD-ROM_VB2-01700376
E: ID_SERIAL_SHORT=VB2-01700376
instead of just
# udevadm info -q all -p /sys/devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
P: /devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
E: UDEV_LOG=3
E: DEVPATH=/devices/pci0000:00/0000:00:01.1/host3/target3:0:0/3:0:0:0
E: DEVTYPE=scsi_device
E: DRIVER=sr
E: MODALIAS=scsi:t-0x05
E: SUBSYSTEM=scsi
E: ID_SCSI=1
E: ID_VENDOR=VBOX
E: ID_VENDOR_ENC=VBOX\x20\x20\x20\x20
E: ID_MODEL=CD-ROM
E: ID_MODEL_ENC=CD-ROM\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
E: ID_REVISION=1.0
E: ID_TYPE=cd
Signed-off-by: David Zeuthen <davidz@redhat.com>
