uirt2_raw: "couldn't read command result" after kernel update (debian/squeeze)

[Cédric D. - I. R. I. <ced...@id...>]

Hello,

After updating my debian/squeeze box's kernel, my UIRT device couldn't
be used anylonger. It works like a charm after reverting to a previous
kernel. I suspect the change responsible for this is
https://lkml.org/lkml/2011/11/22/690 (though I may be wrong).

Can someone confirm this behavior?
Is there anything that can be done at the "configuration" level to
circumvent that issue?
Otherwise, is there anything I can do to help solve that issue?

The various (hopefully) relevant details are:

# apt-cache policy lirc | fgrep -i installed
  Installed: 0.8.3-5

# fgrep uirt2_raw /var/log/syslog  # kernel debian/squeeze 2.6.32-41
Jan 30 10:58:44 ced-server lircd-0.8.3[5766]: uirt2_raw: couldn't read
command result
Jan 30 10:58:44 ced-server lircd-0.8.3[5766]: uirt2_raw: No UIRT2 device
found at /dev/ttyUIRT

# fgrep uirt2_raw /var/log/syslog  # kernel debian/squeeze 2.6.32-49squeeze1
Jan 30 11:30:13 ced-server lircd-0.8.3[1835]: uirt2_raw: UIRT version
0905 ok

# lsusb | fgrep -i uirt
Bus 002 Device 004: ID 0403:f850 Future Technology Devices
International, Ltd USB-UIRT (Universal Infrared Receiver+Transmitter)

# apt-cache policy linux-image-2.6.32-5-openvz-amd64 | egrep -i
'(installed|candidate)'
  Installed: 2.6.32-39squeeze1  # UIRT works
  Candidate: 2.6.32-41  # UIRT does not work

Thanks and cheers
-- 

Cédric Dufour @ Idiap Research Institute
"No complaint is enough praise"