Re: locking a device for exclusive use by userspace process (or kernel thread)

On Wed, Mar 04, 2015 at 06:59:04PM +0100, Yann Droneaud wrote:

Hi,

I have a device and I have to write a driver that exposes the following three operations to kernel modules AND to userspace programs:

<snip> Why? What type of device is this? And who is asking you to do this homework assignment? good luck, greg k-h