Re: Figuring out USB device locations

From: James Lamanna
Date: Thu Mar 25 2004 - 19:40:11 EST

Greg KH wrote:

On Thu, Mar 25, 2004 at 09:20:47AM -0800, James Lamanna wrote:

Is there an easy way to find out what /dev entries usb devices get mapped to from userspace?

"easy way" on 2.4? No, sorry. You need 2.6 to determine this in a
simple manner. But there are some files in the /proc/bus/usb/
and /proc/bus/input/ directories that will help you out.

Hmm...its not obvious to me how i can use /proc/bus/usb/xxx/yyy to get the /dev entry information. I can get the USB device number, but I don't see how to get at a mapping to a major/minor in /dev space (or is this not possible in 2.4)...

James Lamanna
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