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USB: usbfs: deprecate and hide option for !embedded

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Modern systems do not use usbfs; the entries within it are files,
not device nodes, and do not support ACLs which are the default way to
provide access to USB devices to untrusted users.

It is replaced by device-nodes maintained by udev in /dev/bus/usb,
libusb uses this device nodes.

Mark the option as deprecated, and hide entirely for non-embedded builds
(which may not be using udev but require raw USB device access).

Signed-off-by: Scott James Remnant <scott@canonical.com>
Acked-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Scott James Remnant 2009-04-21 17:21:40 +01:00 committed by Greg Kroah-Hartman
parent 91f8d063d3
commit cc71329b3b
1 changed files with 10 additions and 6 deletions
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16
drivers/usb/core/Kconfig
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@ -28,7 +28,7 @@ comment "Miscellaneous USB options"
depends on USB
config USB_DEVICEFS
bool "USB device filesystem"
bool "USB device filesystem (DEPRECATED)" if EMBEDDED
depends on USB
---help---
If you say Y here (and to "/proc file system support" in the "File
@ -46,11 +46,15 @@ config USB_DEVICEFS
For the format of the various /proc/bus/usb/ files, please read
<file:Documentation/usb/proc_usb_info.txt>.
Usbfs files can't handle Access Control Lists (ACL), which are the
default way to grant access to USB devices for untrusted users of a
desktop system. The usbfs functionality is replaced by real
device-nodes managed by udev. These nodes live in /dev/bus/usb and
are used by libusb.
Modern Linux systems do not use this.
Usbfs entries are files and not character devices; usbfs can't
handle Access Control Lists (ACL) which are the default way to
grant access to USB devices for untrusted users of a desktop
system.
The usbfs functionality is replaced by real device-nodes managed by
udev. These nodes lived in /dev/bus/usb and are used by libusb.
config USB_DEVICE_CLASS
bool "USB device class-devices (DEPRECATED)"