On 20:35 Wed 08 May , Arnd Bergmann wrote: > On Wednesday 08 May 2013, Nicolas Pitre wrote: > > I tried to fix this up over 10 years ago. RMK tried as well. This > > failed because X86 people insisted on always having COM1 as /dev/ttyS0, > > COM3 as /dev/ttyS2 and so on, even when some of them weren't present. > > > > A common and dynamic namespace eventually succeeded for hard disks. > > Maybe people are ready to accept it for serial ports as well now? > > Unfortunately it only worked for hard disks because the old name > space was abandoned entirely. It also caused a lot of surprises > for people upgrading their kernels, which is something we probably > don't want to repeat. > > Now we could add a new dynamic registration facility to the tty > layer for drivers that don't already have a name and dev_t > associated with the driver, and then use it for all new drivers > as well as those that intentionally want to convert.
specially that we use devtmpfs and udev we do not care much about minor/major > > With DT aliases, we already have a way to enumerate serial ports > across device drivers, so if we are going to do something new, > we should make sure it works with the numbers defined there. > > Arnd _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss
