Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 13 Dec 2006 00:50:07 +0100 | From | Tilman Schmidt <> | Subject | Re: [PATCH] Add the ability to layer another driver over the serial driver |
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Am 11.12.2006 18:07 schrieb Corey Minyard: > Tilman Schmidt wrote: >> I was under the impression that line disciplines need a user space >> process to open the serial device and push them onto it. Is there >> a way for a driver to attach to a serial port through the line >> discipline interface from kernel space, eg. from an initialization, >> module load, or probe function? >> > Module initialization functions run in a task context, so that's > generally not a problem. The probe function depends on the driver, > I guess, but most I have seen are in task context.
Could you be a bit more specific? If I write a module implementing a line discipline, how would I go about having that line discipline push itself onto a given serial port (specified for example through a module parameter) immediately, during its own module initialization? I can't seem to find an in-kernel interface for that.
Also, if I understand correctly, this would only work if the driver is compiled as a module, but such a limitation seems to be frowned upon within the kernel community. Any way around that?
Thanks Tilman
-- Tilman Schmidt E-Mail: tilman@imap.cc Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. Ungeöffnet mindestens haltbar bis: (siehe Rückseite)
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