[coLinux-devel] [ colinux-Bugs-3291398 ] /dev/ttySx: " Device or resource busy"

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Bugs item #3291398, was opened at 2011-04-22 13:30
Message generated for change (Comment added) made by gcasse
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Category: Linux Kernel
Group: v0.7.x (release)
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Gilles Casse (gcasse)
Assigned to: Nobody/Anonymous (nobody)
Summary: /dev/ttySx: " Device or resource busy"

Initial Comment:
Using simultaneously two serial devices appears to be not possible (colinux 0.7.9).
For example below, ttyS0 or ttyS1 can be read, but if ttyS0 is being read, then ttyS1 is considererd as busy.

root@colinux:~# cat /dev/ttyS0
^C
root@colinux:~# cat /dev/ttyS1
^C
root@colinux:~# cat /dev/ttyS0&
[1] 2618
root@colinux:~# cat /dev/ttyS1
cat: /dev/ttyS1: Device or resource busy
root@colinux:~# dmesg -c
COSERIAL: unable to get irq 3
cocd: close no attached struct



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>Comment By: Gilles Casse (gcasse)
Date: 2011-05-04 14:48

Message:
The attached patch enables the use of several serial devices (ttySx) (diff
from coserial.c, rev svn 1545, kernel 2.6.33.7).
The whole coserial.c file is also attached.


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