Re: [Xenomai-help] Serial driver and TX events

[Anders Blomdell <anders.blomdell@domain.hid>]

Jan Kiszka wrote:
> Anders Blomdell wrote:
>> Are there any reason why the serial driver could not be changed to give an event
>> when all characters has left the TX buffer?
> 
> No, I don't think so. Somehow I have the feeling someone requested this
> feature before, but I cannot find any reference  or even code ATM.
> However. Patch would be welcome.
OK, I'll see what I can do. Is patch against 2.4.2 OK (pressing deadline -> I do
not have the time to uprade right now).

My need for it is to make it possible to wait until all characters has left the
FIFO (needed for autobaud detection), so perhaps a ioctl RTIOC_DRAIN (similar to
RTIOC_PURGE) is a better choice (you decide what you prefer, and I'll try to
implement it)

/Anders

-- 
Anders Blomdell                  Email: anders.blomdell@domain.hid
Department of Automatic Control
Lund University                  Phone:    +46 46 222 4625
P.O. Box 118                     Fax:      +46 46 138118
SE-221 00 Lund, Sweden