Re: [PATCH] smsc-ircc2: Add PnP support.

[Meelis Roos <mroos@linux.ee>]

mc> try to do an "echo auto > /sys/bus/pnp/device_number/resources"
mc> 
mc> It will reenable the device.

I tried this on my Toshiba Satellite 1800-314 and the device gets IO
resources but is still disabled. echo activate > ... will enable it but
the smc-ircc2 driver still finds that the device is disabled (in
2.6.10-rc2+yesterdays BK):

nartsiss:~# cat /sys/bus/pnp/devices/00\:0a/options
Dependent: 01 - Priority acceptable
   port 0x3f8-0x3f8, align 0x0, size 0x8, 16-bit address decoding
Dependent: 02 - Priority acceptable
   port 0x2e8-0x2e8, align 0x0, size 0x8, 16-bit address decoding
Dependent: 03 - Priority acceptable
   port 0x2f8-0x2f8, align 0x0, size 0x8, 16-bit address decoding
Dependent: 04 - Priority acceptable
   port 0x3e8-0x3e8, align 0x0, size 0x8, 16-bit address decoding
nartsiss:~# cat /sys/bus/pnp/devices/00\:0a/resources
state = disabled
nartsiss:~# echo auto > /sys/bus/pnp/devices/00\:0a/resources
nartsiss:~# cat /sys/bus/pnp/devices/00\:0a/resources
state = disabled
io 0x2e8-0x2ef
nartsiss:~# echo activate > /sys/bus/pnp/devices/00\:0a/resources
nartsiss:~# cat /sys/bus/pnp/devices/00\:0a/resources
state = active
io 0x2e8-0x2ef
nartsiss:~# modprobe smsc-ircc2
FATAL: Error inserting smsc_ircc2
(/lib/modules/2.6.10-rc2/kernel/drivers/net/irda/smsc-ircc2.ko): No such device
nartsiss:~# dmesg|tail -5
pnp: Device 00:0a activated.
NET: Registered protocol family 23
found SMC SuperIO Chip (devid=0x5a rev=00 base=0x002e): LPC47N227
smsc_superio_flat(): IrDA not enabled
smsc_superio_flat(): fir: 0x00, sir: 0x2e8, dma: 15, irq: 0, mode: 0x02


Looks like there is also a enable/disable bit in the actual LPC device,
or maybe it needs also a fir address and/or irq?

-- 
Meelis Roos