Hi Philipp, On 1/13/22 21:54, Philipp Hortmann wrote:
On 1/13/22 4:33 PM, Greg KH wrote:
On Thu, Jan 13, 2022 at 07:39:38AM +0100, Philipp Hortmann wrote:
On 1/12/22 10:54 AM, Greg KH wrote:
That driver tried to be an example for an unknown device, doing multiple different things that no single driver/device would probably ever need. Also it can almost always just be replaced with a simple userspace program using libusb, as I bet your driver could be replaced with as well, right? Yes it can be replaced by a userspace program but even this is not required. It is an issue if you are trying to write a new driver. We do not take new drivers into the kernel tree if they can be in the kernel instead.
Sorry I did not clearly express what I plan to do. I plan to do maintenance and bug fixes on the kernel.
I am writing on drivers only for my personal education. No new drivers for the kernel.
I think, syzbot dashboard can be a good place to start from [1]. There are a lot of usb related warnings in old drivers. Just grep the web page for 'usb_submit_urb'. Might be valuable work to get familiar with basic kernel APIs. Good luck :) [1] https://syzkaller.appspot.com/upstream With regards, Pavel Skripkin