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Got the USB – CEC Adapter from Pulse-Eight and hooked it up to the office’s Sony Bravia TV. Output from dmesg:

[945751.683883] usb 2-2.3: USB disconnect, device number 5
[945756.456657] usb 2-2.3: new full speed USB device number 13 using ehci_hcd
[945756.543124] usb 2-2.3: New USB device found, idVendor=2548, idProduct=1001
[945756.543129] usb 2-2.3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[945756.796580] cdc_acm 2-2.3:1.0: ttyACM0: USB ACM device
[945756.797164] usbcore: registered new interface driver cdc_acm
[945756.797167] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

Compiled and installed the latest Git-version of Pulse-Eight’s libCEC (note, add -b release to the git clone command), and fired up the cec-client. The device doesn’t show up in the Sony TV’s Bravia Link menu. All HDMI ports were tried on the TV.

$ cec-client
No device type given. Using ‘playback device’
CEC Parser created – libcec version 1.0
no serial port given. trying autodetect:
path: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2/2-2.3
com port: /dev/ttyACM0

cec device opened
DEBUG: [ 0] trying to autodetect all CEC adapters
DEBUG: [ 18] connection opened
DEBUG: [ 19] communication thread started
DEBUG: [ 20] FindLogicalAddresses – device 0: type 4
DEBUG: [ 20] detecting logical address for type ‘playback device’
DEBUG: [ 20] trying logical address ‘playback 1′
DEBUG: [ 20] setting ackmask to 10
DEBUG: [ 24] command sent
NOTICE: [ 159] << 4 -> 4: POLL
TRAFFIC: [ 159] << 44
DEBUG: [ 164] command sent
DEBUG: [ 371] COMMAND_ACCEPTED
DEBUG: [ 371] COMMAND_ACCEPTED
DEBUG: [ 371] COMMAND_ACCEPTED
ERROR: [ 371] did not receive ack
DEBUG: [ 371] >> POLL not sent
NOTICE: [ 371] using logical address ‘playback 1′
DEBUG: [ 371] >> 4 changed physical address from ffff to 1000
DEBUG: [ 371] setting ackmask to 10
DEBUG: [ 376] command sent
DEBUG: [ 511] processor thread started
DEBUG: [ 511] COMMAND_ACCEPTED
DEBUG: [ 511] << powering on device with logical address 0
TRAFFIC: [ 511] << 40:04
DEBUG: [ 516] command sent
DEBUG: [ 819] COMMAND_ACCEPTED
DEBUG: [ 819] COMMAND_ACCEPTED
DEBUG: [ 819] COMMAND_ACCEPTED
ERROR: [ 819] did not receive ack
NOTICE: [ 820] << 4 -> broadcast: active view (1000)
TRAFFIC: [ 820] << 4f:82:10:00
DEBUG: [ 874] command sent
DEBUG: [ 1369] COMMAND_ACCEPTED
DEBUG: [ 1369] COMMAND_ACCEPTED
DEBUG: [ 1369] COMMAND_ACCEPTED
DEBUG: [ 1369] COMMAND_ACCEPTED
DEBUG: [ 1369] COMMAND_ACCEPTED
DEBUG: [ 1369] TRANSMIT_SUCCEEDED
waiting for input

I tried to get some feedback on Pulse-Eight’s IRC channel, but most people there seemed to be idling I was horribly impatient and they didn’t fix my problem in the first 60 seconds One thing was worth mentioning though – the HDMI ports on the device are labeled “IN” and “OUT”, but according to one user it actually doesn’t matter which port you use.

Stay tuned for part 2, where I will be taking this mysteriout device with me home and hooking it up to my Panasonic Viera TV. Fingers crossed.