It is probably because the port is in use by the linux serial driver.
Here are a few previous messages that may help.
Regards,
Rich
-----Original Message-----
From: Pfistner [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 13, 1999 8:18 AM
To: [EMAIL PROTECTED]
Subject: [rtl] rt_com: insmod failed
Importance: Low
insmod rt_com fails with
'init_module: Device or resource busy'
check_region( p->port, 8 ) seems to fail in init_module() in rt_com.c
How to get it working? Is there anything I'm missing? I need to get it
running as soon as possible!!!
Help is appreciated!
---------------------------------------------------------------
Firma TWI GmbH Phone: +49 (0)721 950 77-0
Dipl.-Ing. Norbert Pfistner Fax: +49 (0)721 57 48 32
Industriestr. 6 E-Mail: [EMAIL PROTECTED]
D-76189 Karlsruhe WWW: www.TWI-germany.com
Germany
-----Original Message-----
From: Jochen [mailto:[EMAIL PROTECTED]]
Sent: Monday, August 16, 1999 2:22 AM
To: Real-Time Linux
Cc: Pfistner; [EMAIL PROTECTED]
Subject: Re: [rtl] rt_com: insmod failed
On Sam, 14 Aug 1999 Tomasz Motylewski wrote:
>On Fri, 13 Aug 1999, Jose Guilberto wrote:
>
>> release the region with release_region(ADDRESS, 8) before you
>> check it or don't check it with check_region. That region is already in
No, that is not a good choice.
>> use by the serial port drivers.
Yes. So don't take it away from serial.o without telling it !
>> > insmod rt_com fails with
>> > 'init_module: Device or resource busy'
>> >
>> > check_region( p->port, 8 ) seems to fail in init_module() in rt_com.c
>
>Or just use setserial and set UART type to "none".
>
>setserial /dev/ttyS_whatever_you_need uart none
Yes.
Or patch your standard serial port driver not to use the port you wanna
use with rt_com.
Or load the serial.o module after rt_com.
-- Jochen
Heinrich-Heine-Universität Düsseldorf [EMAIL PROTECTED]
Institut für Physikalische Chemie I phone ++49-211-8113681
Universitätsstr. 26.43.02.29 fax ++49-211-8115195
40225 Düsseldorf, Germany www-public.rz.uni-duesseldorf.de/~jochen
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-----Original Message-----
From: Tomasz Motylewski [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 13, 1999 3:38 PM
To: Jose Guilberto
Cc: Pfistner; [EMAIL PROTECTED]
Subject: Re: [rtl] rt_com: insmod failed
Importance: Low
On Fri, 13 Aug 1999, Jose Guilberto wrote:
> release the region with release_region(ADDRESS, 8) before you
> check it or don't check it with check_region. That region is already in
> use by the serial port drivers.
> > insmod rt_com fails with
> > 'init_module: Device or resource busy'
> >
> > check_region( p->port, 8 ) seems to fail in init_module() in rt_com.c
Or just use setserial and set UART type to "none".
setserial /dev/ttyS_whatever_you_need uart none
--
Tomek
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-----Original Message-----
From: A.Han [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 14, 2001 12:07 AM
To: [EMAIL PROTECTED]
Subject: [rtl] rt_com problem
hi,
I failed to insmod rt_com.o, the error message is:
rt_com.o:init_module:device or resourece busy
I got this rt_com driver from rtlinux2.2. I have studied
the source code in rough, but I still do not konw what the
reason might be and how to resolve the problem.
thanks for you advice!
A.han
2001.9.14
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