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11.14.2001 at 11:57PM PST, ID: 20233286
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8.4

Linux serial ports from Kernel space

Asked by CrypToniC in Linux Programming

Tags: , , , ,

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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[+][-]11.16.2001 at 05:06PM PST, ID: 6639035

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About this solution

Zone: Linux Programming
Tags: serial, linux, kernel, port, space
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Solution Provided By: bryanh
Participating Experts: 4
Solution Grade: A
 
 
[+][-]12.12.2001 at 11:36AM PST, ID: 6674458

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[+][-]04.20.2002 at 08:47AM PDT, ID: 6956221

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[+][-]04.20.2002 at 09:00AM PDT, ID: 6956262

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[+][-]04.21.2002 at 09:53AM PDT, ID: 6957992

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[+][-]06.29.2002 at 08:21AM PDT, ID: 7118706

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