why is there no /proc/bus/usb?

Question

I have an old Thinkpad R32 2658 and I want to use dfu-util. The reference documentation starts with the following description:

To run dfu-util, you need to have /proc/bus/usb mounted and working. The terminal command "ls /proc/bus/usb" should return something similar to, "001 002 003 004 005 devices", it shouldn't be empty. If it is empty, use this command: sudo mount -t usbfs usbfs /proc/bus/usb

The problem is: I don't have /proc/bus/usb at all. In /proc/bus there are only input and pci sub-directories. But I do have USB ports on my old notebook and my USB keys work well.

What can I do?

score 1 · Accepted Answer · answered Jan 20 '13 at 00:33

1

Not strictly a solution but a workaround that worked for the author of the question is available in this forum entry.

Please note, the author of the answer above states that this is not a long-term solution.

answered Jan 20 '13 at 00:33

bender

1,854

score -1 · Answer 2 · answered Oct 29 '13 at 18:15

-1

In 12.04 (and perhaps before), /usb/bin/usb-devices is a script that provides similar info.

answered Oct 29 '13 at 18:15

MikeB

1

why is there no /proc/bus/usb?

2 Answers2