> I'm not sure if this is a devfs or mips problem so I'm sending it
> to both lists.
> I just compiled my own mips-kernel from oss.sgi.com:/cvs to get
> devfs-support. Unfortunately there seems to be a problem with the
> serial-driver at least in the linux_2_4 branch:
> SGI Zilog8530 serial driver version 1.00
> devfs_register(ttyS): could not append to parent, err: -17
This means that somebody else registered ttyS (and cua) before Zilog8530
driver attempted to do it. The possible reason could be that driver
calls tty_register_devfs itself in this case it must set
TTY_DRIVER_NO_DEVFS flag to prevent the same nodes registered by
> devfs_register(cua): could not append to parent, err: -17
> tty00 at 0xbfbd9830 (irq = 29) is a Zilog8530
> tty01 at 0xbfbd9838 (irq = 29) is a Zilog8530
> The result is that the directories /dev/tts and /dev/cua are missing.
> There are only the files /dev/ttS and /dev/cua which can be used to
> access to the first serial port.
> I have attached the full dmesg output at the end.