Re: device model and character devices

Artem B. Bityutskiy
2006-04-05T07:53:00Z

Greg KH wrote:
> Because "struct device" generally is not related to a major:minor pair
> at all. That is what a struct class_device is for. Lots of struct
> device users have nothing to do with a char device, and some have
> multiple char devices associated with a single struct device.
Well, OK, but AFAIK, your long-term plan is to merge class_device and
device, so in the long-term perspective it does not matter. And those
who do not need a character device support may have a possibility to
disable it.

> All that being said, yes, there is a disconnect between the driver model
> parts and the char subsystem. It's been something that I've wanted to
> fix for a number of years, but never had the time to do so. If you want
> to work toward doing this, I'd be glad to review any patches.
Will see. At this point my knowledge and understanding is not so deep,
so I don't think I'm able to provide decent patches. May be in future.
For now I'm only wondering.

Thanks.

--
Best Regards,
Artem B. Bityutskiy,
St.-Petersburg, Russia.