Messages in this thread | | | Date | Thu, 8 Mar 2007 13:48:00 +0000 | From | Russell King <> | Subject | Re: should RTS init in serial core be tied to CRTSCTS |
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On Thu, Mar 08, 2007 at 08:44:31AM -0500, Robin Getz wrote: > On Wed 7 Mar 2007 16:30, Oleksiy Kebkal pondered: > > 2007/3/7, Robin Getz <rgetz@blackfin.uclinux.org>: > > > Right - so the question is where to manage the default state? I was > > > thinking in the resource might be a good idea, but there isn't really a > > > good place for it. (You could re-use some bits if flags, but I think that > > > would not be a good idea). > > > > /proc/tty/driver/uartN/settings? > > > > That would let you change things are run time, but the problem is at boot > time. A default setting needs to be set, so when things initialize, and proc > does not exist yet, it is still set properly...
I disagree. "proc does not exist yet" - the only time that applies is long before userspace as active.
As I've said already, having a console on the same port as your application program is just asking for trouble. All bets are off - the kernel _will_ corrupt your data stream in random places.
Don't do it - it will _NEVER_ be reliable.
Never, ever, mix kernel consoles with application serial ports.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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