On Thu, Mar 20, 2014 at 12:35:18PM -0500, Felipe Balbi wrote: > On Thu, Mar 20, 2014 at 01:34:57PM -0400, Peter Hurley wrote: > > [ +cc Huang Shijie ] > > > > On 03/20/2014 01:29 PM, Felipe Balbi wrote: > > >then we need updates to Documentation: > > > > > >Documentation/serial/tty.txt:: > > > > > >| Driver Side Interfaces: > > >| > > >| receive_buf() - Hand buffers of bytes from the driver to the > > >ldisc > > >| for processing. Semantics currently rather > > >| mysterious 8( > > >| > > >| write_wakeup() - May be called at any point between open and > > >close. > > >| The TTY_DO_WRITE_WAKEUP flag indicates if a call > > >| is needed but always races versus calls. Thus > > >the > > >| ldisc must be careful about setting order and to > > >| handle unexpected calls. Must not sleep. > > >| > > >| The driver is forbidden from calling this > > >directly > > >| from the ->write call from the ldisc as the > > >ldisc > > >| is permitted to call the driver write method > > >from > > >| this function. In such a situation defer it. > > > > > >documentation says ldisc is allowed to call ->write() from > > >->write_wakeup(). huh ? > > > > Patch submitted but never applied. > > > > http://www.spinics.net/lists/linux-serial/msg11144.html > > Thank you. For that patch: > > Acked-by: Felipe Balbi <[email protected]>
Can someone resend it, this is lost in my tree for some reason... -- 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/
