[ltp] IrDA on a T42p?

[Marius Gedminas]

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On Sun, Jun 04, 2006 at 04:54:52PM -0400, Norman Walsh wrote:
> / Marius Gedminas <mgedmin@b4net.lt> was heard to say:
> | This should work on Debian/Ubuntu:
> |
> |   # dpkg-reconfigure irda-utils
> |       Enable on startup?  Yes
> |       Probe on bootup?  Yes
> |       Discovery mode?  No
> |       Device type: native
> |       FIR: nsc-ircc
> |       module options: dongle_id=3D0x09 io=3D0x2f8 irq=3D3 dma=3D3
> |       Port for setserial to quiet: /dev/ttyS1
> |   # /etc/init.d/irda-utils restart
>=20
> Hmm. I still get:
>=20
> [4294687.620000] irda_init()
> [4294687.620000] NET: Registered protocol family 23
> [4294687.657000] **** SET: Misaligned resource pointer: f7c99842 Type 00 =
Len 42
> [4294687.657000] **** SET: Misaligned resource pointer: f7c998c6 Type 07 =
Len 0
> [4294687.657000] pnp: Device 00:0b activated.
> [4294687.657000] nsc_ircc_pnp_probe() : Found cfg_base 0x000 ; firbase 0x=
2F8 ; irq 3 ; dma 1.

It says 'dma 1' here, but 'dma 3' on my T42.  Maybe you should change
the module options?

> [4294687.657000] nsc-ircc, Found chip at base=3D0x000
> [4294687.657000] nsc-ircc, driver loaded (Dag Brattli)
> [4294687.657000] IrDA: Registered device irda0
> [4294687.657000] nsc-ircc, Using dongle: IBM31T1100 or Temic TFDS6000/TFD=
S6500
> [4294687.657000] nsc-ircc, Found chip at base=3D0x02e
> [4294687.657000] nsc-ircc, driver loaded (Dag Brattli)
> [4294687.657000] nsc_ircc_open(), can't get iobase of 0x2f8

FWIF I get the same messages (including "can't get iobase"), but IrDA works
for me.  I do use setserial to disable the serial driver before
modprobing nsc-ircc.

> [4294687.769000] Unable to handle kernel NULL pointer dereference at virt=
ual address 00000004
> [4294687.769000]  printing eip:
> [4294687.769000] c013112f
> [4294687.769000] *pde =3D 00000000
> [4294687.769000] Oops: 0002 [#1]
> [4294687.769000] PREEMPT=20

*scratches head*

*looks at his own dmesg*

Whoa!

[4294706.131000] nsc_ircc_open(), can't get iobase of 0x2f8
[4294706.186000] ACPI: PCI Interrupt 0000:02:02.0[A] -> Link [LNKC] -> GSI =
11 (level, low) -> IRQ 11
[4294706.187000] ipw2200: Detected Intel PRO/Wireless 2200BG Network Connec=
tion
[4294706.287000] Unable to handle kernel NULL pointer dereference at virtua=
l address 00000004
[4294706.287000]  printing eip:
[4294706.287000] c013c886
[4294706.287000] *pde =3D 00000000
[4294706.287000] Oops: 0002 [#1]
[4294706.287000] PREEMPT SMP
[4294706.287000] Modules linked in: irtty_sir sir_dev nsc_ircc irda floppy =
crc_ccitt parport_pc parport ipw2200 ieee80211 ieee80211_crypt yenta_socket=
 rsrc_nonstatic pcmcia_core ieee80211_1_1_13 ieee80211_1_1_13_crypt snd_int=
el8x0 snd_ac97_codec snd_ac97_bus snd_pcm_oss snd_mixer_oss pcspkr snd_pcm =
snd_timer snd psmouse soundcore snd_page_alloc serio_raw e1000 hci_usb blue=
tooth shpchp pci_hotplug intel_agp agpgart tsdev evdev usbhid ext3 jbd ide_=
generic ehci_hcd uhci_hcd usbcore ide_cd cdrom ide_disk piix generic therma=
l processor fan capability commoncap vga16fb vgastate fbcon tileblit font b=
itblit softcursor
[4294706.287000] CPU:    0
[4294706.287000] EIP:    0060:[<c013c886>]    Not tainted VLI
[4294706.287000] EFLAGS: 00010092   (2.6.15-23-686)
[4294706.287000] EIP is at finish_wait+0x36/0x70
[4294706.287000] eax: 00000202   ebx: f6811fd8   ecx: 00000000   edx: 00000=
000
[4294706.287000] esi: f6811fcc   edi: f8b092a8   ebp: 00000000   esp: f6811=
fb4
[4294706.287000] ds: 007b   es: 007b   ss: 0068
[4294706.287000] Process kIrDAd (pid: 3213, threadinfo=3Df6810000 task=3Df6=
fa7030)
=2E..

I had never noticed that before.  Ouch.  So my kernel oopses on every boot.

Note that if I now do

  sudo /etc/init.d/irda-utils restart

then the following messages appear in dmesg:

[4547926.839000] **** SET: Misaligned resource pointer: f27eaa42 Type 00 Le=
n 42
[4547926.840000] **** SET: Misaligned resource pointer: f27eaac6 Type 07 Le=
n 0
[4547926.841000] pnp: Device 00:0b activated.
[4547926.842000] nsc_ircc_pnp_probe() : Found cfg_base 0x000 ; firbase 0x2F=
8 ; irq 3 ; dma 3.
[4547926.843000] nsc-ircc, Found chip at base=3D0x000
[4547926.844000] nsc-ircc, driver loaded (Dag Brattli)
[4547926.846000] IrDA: Registered device irda0
[4547926.846000] nsc-ircc, Using dongle: IBM31T1100 or Temic TFDS6000/TFDS6=
500
[4547926.847000] nsc-ircc, Found chip at base=3D0x02e
[4547926.847000] nsc-ircc, driver loaded (Dag Brattli)
[4547926.847000] nsc_ircc_open(), can't get iobase of 0x2f8
[4547927.040000] irlap_change_speed(), setting speed to 9600

and I have a new network interface, irda0.  This is why I assumed IrDA works
for me.  irdadump, however, doesn't show anything when I try to beam a busi=
ness
card from my Palm.  It used to work a long time ago.

Marius Gedminas
--=20
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