Question

Linux serial ports from Kernel space

Asked by: CrypToniC

Hi

How can I access the serial port from kernel space ? (from a driver)

From user space it's just like fd=open("/dev/ttyS0", ... )

But from kernel space it seems more difficult. I had a look at the Axis bluetooth implementation and they use
a whole complex thingy called ttys (via termios.h) ?
Can someone explain why tty's are used ?

What I want to do is not far from the Axis solution i.e.
ppp over my_driver out on the serial port for further processing. The problem is that I do not understand the while tty concept, neighter can I find any doc about it.

Thanx
BTW this is my very first driver :)

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Asked On
2001-11-14 at 23:57:05ID20233286
Tags

serial

,

linux

,

kernel

,

port

,

space

Topic

Linux Programming

Participating Experts
4
Points
200
Comments
6

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Accepted Solution

by: bryanhPosted on 2001-11-16 at 17:06:53ID: 6639035

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by: Anthony2000Posted on 2001-12-12 at 11:36:09ID: 6674458

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by: MoondancerPosted on 2002-04-20 at 08:47:35ID: 6956221

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by: MoondancerPosted on 2002-04-21 at 09:53:51ID: 6957992

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