Hi Ramon,
I got the same problem several weeks ago. Jochen gave me a very good advice:
Release your requested serial ports just before starting your module by
setting its UART to 'none'. E.g your module want's to use /dev/ttyS0:
setserial /dev/ttyS0 uart none
(see man setserial for more details)
So you can reset your serial port after exiting your module:
setserial /dev/ttyS0 uart 16550A
(this should be the correct uart type, since rt_com depends on it, as far as
I understood rt_com.c)
To load/unload my module I wrapped the whole thing in a small perlscript :-)
Hope it helped
Norbert
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 26, 1999 9:47 AM
To: [EMAIL PROTECTED]
Subject: [rtl] rt_com Questions
Hi,
I have installed the V1.3 rtlinux over
a Redhat 6.0 distribution. I used the special
patch in :
http://www.suse.de/~florian/
Now I'm trying to use rt_com to handled the
serial line. I compiled rt_com correctly, but
when I try to install the module I always get:
rt_com: cannot request all port regions
this is due to the fact, that
when the modules calls
request_region( p->port, 8, "rt_com" );
the system reply that the regions are in use.
This can be seen in :
/proc/ioports
How can solve this problem ?
In don't advise Linux that RTL will use this
ports (I don't request the region) what would happen ?
Best Regards,
Ramon
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