Red Hat Bugzilla – Bug 58123
C-Media 8738 cmpci.o driver does not support modem
Last modified: 2007-04-18 12:38:55 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)
Description of problem:
C-Media 8738 cmpci.o stock driver does not support built-in PCTel modem.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. rmmod cmpci
2. modprobe cmpci
3. tail /var/log/messages
4. kernel log will say that the driver is cmpci vX.X -nomodem
Actual Results: If I install PCTel modem driver, the modem will simply not
work because the link between the sound chip and the modem is not enabled.
Expected Results: If the cmpci.o support the PCTel modem, the modem can be
used without the need to recompiling the driver.
The download page of the driver that support PCTel modem is at
The file that contain the source code for the driver that support PCTel modem is
It is coded by the hardware developer themselves.
I file this as bug because I hate to recompile the driver again and again since
RedHat 6.2, RedHat 7.0 and now RedHat 7.1. I think that RedHat 7.2 will also
not support the PCTel modem. (cannot confirm because not tested it). I need to
use my PCTel Win/LinModem and I don't want to do the same task, again and again.
The modem driver is binary only not open source so not something Red Hat will fix