On 02/25/14 07:56, dennismccloud(a)earthlink.net wrote:
I need some assistance in troubleshooting problem with passing a
modprobe parameter to the lirc_zilog module.
I'm running Fedora 19 with the most recent updates:
# uname -r
3.12.11-201.fc19.x86_64
I have a file /etc/modprobe.d/lirc_zilog.conf file that contains the following:
# cat /etc/modprobe.d/lirc_zilog.conf
options lirc_zilog tx_only=1
This file previously worked to disable the IR receive mode on the lirc_zilog module but
something seems to have changed to prevent this from happening.
The above parameter is being ignored since the lirc_zilog module is running both transmit
and receive.
Here is the command to receive IR signals:
#irw
00000000000017b5 00 play Hauppauge
00000000000017b5 01 play Hauppauge
00000000000017b5 02 play Hauppauge
The lirc_zilog module is being loaded at system boot time:
# lsmod | grep lirc
lirc_zilog 22473 0
i2c_core 38476 8
drm,i915,i2c_i801,hdpvr,lirc_zilog,drm_kms_helper,i2c_algo_bit,videodev
lirc_dev 19504 1 lirc_zilog
rc_core 26896 1 lirc_dev
The systemd-modules-load.service appears to have completed normally:
# systemctl status systemd-modules-load.service
systemd-modules-load.service - Load Kernel Modules
Loaded: loaded (/usr/lib/systemd/system/systemd-modules-load.service; static)
Active: active (exited) since Mon 2014-02-24 18:06:33 EST; 1min 46s ago
Docs: man:systemd-modules-load.service(8)
man:modules-load.d(5)
Process: 214 ExecStart=/usr/lib/systemd/systemd-modules-load (code=exited,
status=0/SUCCESS)
Feb 24 18:06:32 divo systemd[1]: Starting Load Kernel Modules...
The tx_only option is a valid option for lirc_zilog:
# modinfo lirc_zilog
filename:
/lib/modules/3.12.11-201.fc19.x86_64/kernel/drivers/staging/media/lirc/lirc_zilog.ko
alias: lirc_pvr150
license: GPL
author: Gerd Knorr, Michal Kochanowicz, Christoph Bartelmus, Ulrich Mueller,
Stefan Jahn, Jerome Brock, Mark Weaver, Andy Walls
description: Zilog/Hauppauge infrared transmitter driver (i2c stack)
depends: i2c-core,lirc_dev
staging: Y
intree: Y
vermagic: 3.12.11-201.fc19.x86_64 SMP mod_unload
signer: Fedora kernel signing key
sig_key: FC:A0:01:2C:8A:A6:A3:A0:0F:CC:4E:16:E4:8C:17:FD:D9:C6:31:21
sig_hashalgo: sha256
parm: minor:Preferred minor device number (int)
parm: debug:Enable debugging messages (bool)
parm: tx_only:Only handle the IR transmit function (bool)
I can manually unload the lirc_zilog module and manually reload lirc_zilog with the
tx_only=1 option and lirc_zilog module works as desired with IR receive disabled.
I've tried various filenames.conf and the different directories (/lib/modprobe.d) for
modprobe without success.
If I run dmesg and grep for IR, I see that lirc_zilog is probing for IR Rx and IR Tx.
[Mon Feb 24 18:06:34 2014] lirc_zilog: probing IR Rx on Hauppage HD PVR I2C (i2c-8)
[Mon Feb 24 18:06:34 2014] lirc_zilog: probe of IR Rx on Hauppage HD PVR I2C (i2c-8)
done. Waiting on IR Tx.
[Mon Feb 24 18:06:34 2014] lirc_zilog: probe of IR Rx on Hauppage HD PVR I2C (i2c-8)
done
[Mon Feb 24 18:06:34 2014] lirc_zilog: probing IR Tx on Hauppage HD PVR I2C (i2c-8)
[Mon Feb 24 18:06:34 2014] lirc_zilog: IR unit on Hauppage HD PVR I2C (i2c-8) registered
as lirc0 and ready
[Mon Feb 24 18:06:34 2014] lirc_zilog: probe of IR Tx on Hauppage HD PVR I2C (i2c-8)
done
Previously when the tx_only=1 option was being properly processes, the lirc_zilog module
was only probing for IR Tx.
Looking at the systemd entries from dmesg doesn't give any hints for why the
lirc_zilog.conf options file isn't being read.
Looking at the output from journalctl -b doesn't provide any clues.
I've exhausted my ability to troubleshoot the systemd-modules-load.service to see the
details of what is going on during the boot process.
I need help with how to enable debug on the systemd-modules-load process or help of where
to look next to resolve this issue.
Thanks in advance for any assistance you can provide.
I think you're saying that if you manually unload the module and then load it the
.conf file is honored and loaded as you want.
If so, did you run dracut to create a new initramfs with the changes you made?
--
Getting tired of non-Fedora discussions and self-serving posts