Re: usb major and minor number?

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On Sun, Apr 15, 2007 at 04:41:32AM -0700, Ashok kumar wrote:
> Hi,
> 
> i read the usbdoc available in
> http://www.lrr.in.tum.de/Par/arch/usb/usbdoc/node15.html
> and reffered some pages by searching on google also.
> 
> still i have one doubt about usb device major and minor numbering.
> is all the usb devices connected with system shares major numbers?

No, not all, some use their own major number.

> is it differentiated by only minor numbers?

For those that share the usb major number, yes.

> how it was numbered in 2.4series kernel?
> how it is numberd in 2.6 series kernel?

They are both numbered the same, look in the Documentation/devices.txt
file for details.

thanks,

greg k-h

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