MythTV ~ # dmesg | grep ivtv | less
ivtv:  ==================== START INIT IVTV ====================
ivtv:  version 0.4.2 (tagged release) loading
ivtv:  Linux version: 2.6.14-gentoo-r5 preempt PENTIUM4 gcc-3.3
ivtv:  In case of problems please include the debug info between
ivtv:  the START INIT IVTV and END INIT IVTV lines, along with
ivtv:  any module options, when mailing the ivtv-users mailinglist.
ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
tuner 1-0060: chip found @ 0xc0 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=60]
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
ivtv0: This is the first unit of a PVR500
cx25840 1-0044: ivtv driver
cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
wm8775 1-001b: ivtv driver
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
ivtv0: Detected a TEA5767 radio tuner. Enabling radio support.
ivtv0: unable to open firmware v4l-cx2341x-enc.fw
ivtv0: did you put the firmware in the hotplug firmware directory?
ivtv0 warning: failed loading encoder firmware
ivtv0 warning: Error loading firmware -3!
ivtv0: Error -3 initializing firmware.
ivtv0: Error -12 on initialization
ivtv: probe of 0000:02:08.0 failed with error -12
ivtv0: Autodetected WinTV PVR 150 card (cx23416 based)
tuner 1-0061: chip found @ 0xc2 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=(tuner unset), addr=61]
ivtv0: i2c attach to card #0 ok [client=tda9887, addr=43]
ivtv0: i2c attach to card #0 ok [client=tveeprom, addr=50]
cx25840 1-0044: ivtv driver
cx25840 1-0044: cx25843-23 found @ 0x88 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=cx25840, addr=44]
wm8775 1-001b: ivtv driver
wm8775 1-001b: chip found @ 0x36 (ivtv i2c driver #0)
ivtv0: i2c attach to card #0 ok [client=wm8775, addr=1b]
ivtv0: This is the second unit of a PVR500
ivtv0: Correcting tveeprom data: no radio present on second unit
ivtv0: unable to open firmware v4l-cx2341x-enc.fw
ivtv0: did you put the firmware in the hotplug firmware directory?
ivtv0 warning: failed loading encoder firmware
ivtv0 warning: Error loading firmware -3!
ivtv0: Error -3 initializing firmware.
ivtv0: Error -12 on initialization
ivtv: probe of 0000:02:09.0 failed with error -12
ivtv:  ====================  END INIT IVTV  ====================