Re: inerfacing with serial driver

From: Mikkel L. Ellertson (
Date: Fri Jun 09 2000 - 06:10:39 EST

On Fri, 9 Jun 2000, Sharad Joshi wrote:

> Hello folks,
> Can anyone please tell me how do i send chatacters over a serial line (say
> ttyS0). I want to make use of the serial driver (serial.c) functions. But
> the problem is, most of the functions are static. How do i interact with
> the driver. (uh.. the driver is built with the kernel). Never done any
> serious kernel hacking, but i think i'll need to generate some kind of
> software interrupt, isn't it?
> Any guiding link or pointer would be very helpful.
> Using slack 7, 2.2.13k here.
> TIA,
> Sharad.
Depending on exactly what you are trying to do, you normaly treat
/dev/ttyS0 as a file, and use normal file I/O. You might want to take a
look at the serial programing HOWTO.


    Do not meddle in the affairs of dragons,
 for you are crunchy and taste good with ketchup.

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