* Accessing serial device from within
@ 2002-03-14 16:40 Hansen Martin
2002-03-14 16:46 ` Ben Collins
2002-03-14 16:50 ` Vojtech Pavlik
0 siblings, 2 replies; 3+ messages in thread
From: Hansen Martin @ 2002-03-14 16:40 UTC (permalink / raw)
To: linux-kernel
I am writing a module, that will communicate with a device attached to the
serial port.
How can I do that from inside a module, using the present uart driver?
I want to do something like finding and calling the read/write routine that
is called by the kernel when a process from user space accesses the
/dev/ttyS1.
The reason I want to do it this way is that I don't want my module to only
fit one uart.
--
Martin Hansen
Student at SDU Sønderborg. www.sdu.dk
Writing final project at Danfoss drives. www.danfossdrives.com
Tlf: 74 88 54 62
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Accessing serial device from within
2002-03-14 16:40 Accessing serial device from within Hansen Martin
@ 2002-03-14 16:46 ` Ben Collins
2002-03-14 16:50 ` Vojtech Pavlik
1 sibling, 0 replies; 3+ messages in thread
From: Ben Collins @ 2002-03-14 16:46 UTC (permalink / raw)
To: Hansen Martin; +Cc: linux-kernel
On Thu, Mar 14, 2002 at 05:40:12PM +0100, Hansen Martin wrote:
> I am writing a module, that will communicate with a device attached to the
> serial port.
>
> How can I do that from inside a module, using the present uart driver?
> I want to do something like finding and calling the read/write routine that
> is called by the kernel when a process from user space accesses the
> /dev/ttyS1.
>
> The reason I want to do it this way is that I don't want my module to only
> fit one uart.
The question is, why do this in the kernel, when it is more easily
handled in userspace?
--
.----------=======-=-======-=========-----------=====------------=-=-----.
/ Ben Collins -- Debian GNU/Linux -- WatchGuard.com \
` bcollins@debian.org -- Ben.Collins@watchguard.com '
`---=========------=======-------------=-=-----=-===-======-------=--=---'
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Accessing serial device from within
2002-03-14 16:40 Accessing serial device from within Hansen Martin
2002-03-14 16:46 ` Ben Collins
@ 2002-03-14 16:50 ` Vojtech Pavlik
1 sibling, 0 replies; 3+ messages in thread
From: Vojtech Pavlik @ 2002-03-14 16:50 UTC (permalink / raw)
To: Hansen Martin; +Cc: linux-kernel
On Thu, Mar 14, 2002 at 05:40:12PM +0100, Hansen Martin wrote:
> I am writing a module, that will communicate with a device attached to the
> serial port.
>
> How can I do that from inside a module, using the present uart driver?
> I want to do something like finding and calling the read/write routine that
> is called by the kernel when a process from user space accesses the
> /dev/ttyS1.
>
> The reason I want to do it this way is that I don't want my module to only
> fit one uart.
You have to write what's called a line discipline driver.
--
Vojtech Pavlik
SuSE Labs
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2002-03-14 16:51 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2002-03-14 16:40 Accessing serial device from within Hansen Martin
2002-03-14 16:46 ` Ben Collins
2002-03-14 16:50 ` Vojtech Pavlik
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