> Am 18.08.2016 um 17:38 schrieb One Thousand Gnomes > <gno...@lxorguk.ukuu.org.uk>: > >>> Your changes also don't work because serial uart drivers are not obliged >>> to use any of the uart buffering helpers and particularly on the rx side >>> many do not do so and the performance hit would be too high. >> >> The SoC I have, is using it. > > The Linux kernel does generalised implementations. Yes it may work on > your board but it doesn't work for everything.
It needs to work only on boards with a SoC UART. Not with a tty over USB or something else. This is the generalisation I see. Any SoC with uart_port driver support (and as far as I see many are). > It's the difference > between doing it properly and hacking your board to work. Agreed. But solving problems nobody really has is overengineering. Especially if the generalised implementation that is being discussed (tty_port) does not even solve the problem. Or only in a very clumsy and difficult way. In such a case a generalisation seems to be the wrong approach to me. And we should start to accept that we mix up different requirements and try a single solution for almost everyone we can imagine (which isn't bad initially, but can prohibit to find a solution at all) except the real use case that is on the table. That is why I always come back to the practical problem to implement my driver and want to know how it can be done. BR, Nikolaus
