[SOLVED] Handling two devices with one driver

kam_driver · 07-11-2012, 04:14 AM

Hello Everyone,

Currently I am developing character driver for PCI devices. I want to support more than one devices in my driver, So I wanted to know few things:

Is only one instance of driver is enough or I need as many instances as devices ?
If only one is enough then how can I scan which device is connected to my host machine at driver load time ? Is there any kernel function/macro available for this purpose ?

Experts opinions/ideas or some useful links will be highly appreciated!!

Thanks,

bsat · 07-12-2012, 12:52 AM

One driver can handle multiple devices

You can differentiate between the devices using their minor numbers.

kam_driver · 07-19-2012, 04:22 AM

Thanks everyone for not posting reply to the post. Anyways, it is solved now.

bsat · 07-20-2012, 12:37 AM

what update did you provide for the reply posted ?
Did you try using multiple minor numbers ? With out your updates no one can solve your issues.

Anyway, glad you solved the issue.