Re: Load hid.o module synchronously?

Patrick J. LoPresti
2004-04-26T19:51:06Z

Chris Friesen <cfriesen@nortelnetworks.com> writes:

> Patrick J. LoPresti wrote:
>
> > For example, I invoke "modprobe hid" to make my USB keyboard work.
> > This loads the module and exits immediately, causing my script to
> > proceed, before the USB keyboard is probed and ready.
> > I want to wait until the driver is finished initializing (i.e., a USB
> > keyboard is either found or not found) before my script continues.
> > How can I do that?
>
> How about scanning the usb device tree to see if the keyboard is
> present and properly detected?

You mean under sysfs or usbfs? Or both?

I see how I can scan for a USB keyboard after loading the USB host
controller module. I think. But what do I look for, exactly, to tell
when hid.o has hooked itself up to the keyboard?

- Pat