Re: detect connected USB devices

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On Thu, Jul 06, 2006 at 04:54:47PM +0200, mgr@xxxxxxxxxxx wrote:
> Hi,
> 
> I want to write a function that detects what USB devices are connected to
> the bus. How can you do that efficiently? Can you scan the PCI bus in some
> way?

>From within the kernel, or from userspace?

Why do you want to detect all USB devices?

And why would scanning PCI devices show you USB ones?

> Or what do you think of the idea of using poll() and detecting changes in
> the /proc/bus/usb/devices function?

That's how some programs do it, but what about the distros that don't
mount usbfs in /proc/bus/usb/ anymore?

Hint, use HAL for this...

thanks,

greg k-h

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