On Thu, Mar 08, 2007 at 03:23:49PM +0100, Oleksiy Kebkal wrote: > 2007/3/8, Russell King <[EMAIL PROTECTED]>: > >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 <[EMAIL PROTECTED]>: > >> > > 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. > > Ok. I understand now one of the sources of misunderstanding. I don't > want to mix console and application serial port.
It's not a misunderstanding if you realise that email is threaded and you _follow_ the individual threads. Robin has a similar concern to you but _additionally_ wants something that you don't. So really to remove the "confusion" from this discussion you should avoid trying to correct replies to Robin's emails. > The other problem is how to open serial port with correct settings > _after_ booting. In this case /proc could be applicable, isn't it? Doubt it with todays opinions about /proc contents. Probably more appropriate in sysfs, if someone can be bothered to do the work required to properly integrate tty and sysfs. Don't look at me; I'm not doing very much with serial anymore. -- 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 [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
