Why do you think that you need your own driver? In any case, the
IOUSBHIDDriver is the driver for any mouse device. The
AppleUSBOpticalMouse is just a vendor-specific driver that issues
some commands to the driver. I would try to make your device work
with the HID driver. Use the HID lib to communicate with your device
from user space.
--
Fernando Urbina
USB Technology Team
Apple Computer, Inc.
On Jun 14, 2005, at 11:39 AM, Jeff Schindler wrote:
We are writing a device driver for a USB mouse. First off, from
everything I've read (yes, I've read all the pertinent docs), it
appears an in-kernel driver is the way to go. Looking at the
Darwin source, it looks as though a good starting point would be
AppleUSBOpticalMouse (ie subclassing IOUSBHIDDriver). I first
considered the AppleUSBMouse class and subclassing IOHIPointing
from the HID family, but then I noticed that AppleUSBMouse is
obsolete and has been for some time (did AppleUSBOpticalMouse
replace this?). Which is the best approach? Also, I assume I
would need my own user client for user space communication (as
opposed to using an existing user client) - is there a good
starting point for that? Sorry for the newbi-ness of the questions
- this is all new to me.
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