How are USB drivers assigned?
rsmith at xs4all.nl
Tue Jun 29 15:56:49 UTC 2010
On Mon, Jun 28, 2010 at 11:03:38PM -1000, Gary Dunn wrote:
> Is there a file that associates drivers with USB device information?
> More specifically, how does a USB mouse get assigned to the ums driver?
> This is for FreeBSD 8.0, if it matters.
When queried on connection the mouse identifies itself by sending a descriptor
as a Human Interface Device class peripheral, and specifically a mouse. The
USB driver then knows to attach the ums device driver.
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