Major Minor numbers USB dev problem.

[phil128]

Hi, all.

I'm working on developing my first usb device driver. Linux (or hidev) seems to think that the device is a HID, when actually its a special controller i'm working on. There isn't much information about the device, other than I know how the URB's are sent to the device (I sniffed them within Windows, as the device has a driver for Win ).

Anyways, I'm having a problem with dealing with Major and Minor numbers. As It's me who's using the device can I just pick a random Major number, and a minor?

Currently I've got "100 as a Major number" and "1 as a Minor", but when I insert the module and run "mknod /dev/lisdev c 100 1" and within my "open" callback-function I find the device for the given Major & Minor It fails to find the device.

I'm opening my device using "cat". I haven't got my code ATM (currently at work), but later on I'll post it online.

[phil128]

Just a thought.

Because I'm registering my device as a USB class driver, would every device start with the MAJOR number 180? From there I pick my minor from the usb_class_driver struct.

Then I can use "mknod /dev/lisdev 180 0 (or 1, 2, 3, etc)"

Can someone please help me if they've came across this problem before.

Thanks.