lkml.org 
[lkml]   [2006]   [Dec]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Add the ability to layer another driver over the serial driver
Tilman Schmidt wrote:
> On Mon, 11 Dec 2006 10:20:16 +0000, Alan wrote:
>
>> This looks wrong. You already have a kernel interface to serial drivers.
>> It is called a line discipline. We use it for ppp, we use it for slip, we
>> use it for a few other things such as attaching sync drivers to some
>> devices.
>>
>
> 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.

-Corey

-
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/

\
 
 \ /
  Last update: 2006-12-11 18:11    [W:0.093 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site