[ltp] IR (SIR) success!

[Tom Grydeland]

On Mon, 26 Feb 2001, Tom Allison wrote:

> These are my notes on getting the IR port to work with my Palm Vx.

> mknod /dev/irnine c 161 0
> then issue command:
> irattach /dev/ttyS1 -d
> (this must be run as root)
> This will set up the connection between /dev/pilot -> /dev/irnine ->
> /dev/ttyS1
> You have to use the "-d" option for "Discovery" of the devices in IR-land. 
> Then you can use either Pilot-Link or Jpilot.
> 
> NOTE: You must start the PDA's sync process before you hit <rtn>
> (Pilot-Link) or sync/backup (jpilot).  Otherwise, it'll puke.

[...]

> Windows to enable the IR port (Which kills com1 in the back for thinkpads).
>  Then you can go into Linux and find the IR port.

Thanks to Till Straumann's suggestions, I can use setpnp to enable the
IR port, and once it has been enabled at boot, I can turn it on and off
without rebooting.

> Let me know if this is of any assistance and/or if this makes any sense to
> you.

Yes!  I have now, for the first time, synced between my Palm and the
Thinkpad!

Thanks a bundle to Thomas Hood, Till Straumann and Tom Allison for
patient explanations!

What remains:

 * Switching the devices around -- having IR on /dev/ttyS0 (4,64) and
   the DB9 on /dev/ttyS2 (4,66) or have them use different IRQs.  Not
   because it makes a difference, I just want to convince myself that it
   can be done.

 * FIR
   
  findchip -v reports:
reg=0x011
Found NSC PC87338 Controller at 0x2e, DevID=0x0b, Rev. 2
    SIR Base 0x2f8, FIR Base 0x2f8
    IRQ = 4, DMA = 3
    Enabled: yes, Suspended: no
    UART compatible: yes
    Half duplex delay = 0 us

I don't understand where 0x2e or 0x2f8 comes from -- lspnp -v -b 13
reports:
13 IBM0071 IBM Thinkpad infrared port
        irq 4
        io 0x03e8-0x03ef
        dma 3

And tpctl --rs2 reports:
   serial port 2:                                     enable  0x3e8 IRQ4

In this configuration, I can

    irattach /dev/ttyS2 -d

followed by

    pilot-xfer -p /dev/irnine -l

and I get a listing of the databases on the palm.

When I try to load the nsc-ircc module for FIR connection,

    kernel: nsc-ircc, Wrong chip version ff 


Anyway, SIR is *way* better than no IR!

Thanks again, all!

-- 
//Tom Grydeland <Tom.Grydeland@phys.uit.no>


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