Libusb-/proc/bus/usb setup

Alexander E. Patrakov patrakov at
Mon Apr 3 03:14:11 PDT 2006

Ag Hatzim wrote:
> Randy McMurchy(randy at, Apr 02, 2006 at 10:01:38AM -0500:
>> Hi all,
>> There is a bug in the BLFS Trac system titled /proc/bus/usb is obsolete.
>> I'm updating libusb to version 0.1.12 and would like to know if anyone
>> can help me understand the above-referenced bug. The bug says that the
>> /proc/bus/usb setup is obsolete, but it works with kernels up to and
>> including 2.6.14.x. Current LFS SVN is using a 2.6.12.x kernel.
> Just for your information,it doesn't work with a recent kernel ( in my case).

Please don't spread panic. It still works if one selects CONFIG_USB_DEVICEFS=y 
in the kernel config.

> Using the rules that mentioned from Alexander in the bug,sane finds the
> scanner,under /dev/bus/usb and with the proper permitions.

Also true if the "usb" group means proper permissions.

Alexander E. Patrakov

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