[irda-users] SIR problem with 2.6.17 - probably PNP related

[Jon K H. <he...@ac...>]

SIR stopped working for me when I upgraded my Debian sid laptop from
2.6.16 to 2.6.17. I can easily work around this by running FIR
instead. But it would be a shame to lose SIR, as it usually has been
the easiest mode to set up.

You can find the long story in
"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=377539". Complete
logs and strace traces are there.

The short story is that PNP seems to be shutting down the serial
device I'm using for IRDA. Here's part of the dmesg log:

nsc_ircc_pnp_probe() : From PnP, found firbase 0x2F8 ; irq 3 ; dma 3.
nsc-ircc, chip->init
nsc-ircc, Found chip at base=0x02e
nsc-ircc, driver loaded (Dag Brattli)
nsc_ircc_open(), can't get iobase of 0x2f8
nsc-ircc, Found chip at base=0x02e
nsc-ircc, driver loaded (Dag Brattli)
nsc_ircc_open(), can't get iobase of 0x2f8
pnp: Device 00:14 disabled.

and when I run 'irattach /dev/ttyS1 -s', this gets written to
/var/log/messages:

Jul  9 21:58:52 localhost kernel: ttyS1: LSR safety check engaged!
Jul  9 21:58:52 localhost irattach: Stopping device /dev/ttyS1
Jul  9 21:58:52 localhost irattach: ioctl(SIOCGIFFLAGS): No such device
Jul  9 21:58:52 localhost irattach: exiting ...

PnP support for nsc-ircc is new in 2.6.17.
The laptop is an IBM T23.