On Sat, Jun 16, 2018 at 11:06:45AM +0200, Christoph Hellwig wrote: > As far as I can tell there has been no targeted work on the driver > since merging it at all, and since 2014 even the comedi-wide > cleanups stopped, laving just drive by tree wide changes since. > > At the same time the driver badly abuses the tty layer and is one > of only two major abusers of the poll code for in-kernel waits.
Yeah, it's an ugly driver. It should be rewritten to use the new serdev api instead of trying to open a tty device node from within the kernel. I don't object to dropping it. Ian and Hartley, do you know of any users of this driver anymore? thanks, greg k-h