[Angstrom-distro-users] CF Modem (Tosa)

[Michael F. Peintinger]

Hello all,

I have bought a CF modem for my tosa (Zaurus SL-6000). I tested the modem in 
another Zaurus with cacko, so I know it's working.
With angstrom, the modem is recognized, the kernel modules are loaded 
(cf_serial). I can eject, suspend, resume the card using pccardctl perfectly.
But I can't talk to it (using minicom for example). Though it is at ttyS0.
Is there a solution. It is the only thing that is not working. And I would 
hatte to switch to a 2.4 kernel distro just for the modem, but it's 
essential. Has anyone experience with that?

I found this thread about the same problem (without answer):

Hello everybody

I have a Targus CF modem that I'm trying to use in my C750 under the latest
Angstrom with no success.

When I insert the CF card I get in /var/log/messages:

---
Jan  1 00:01:19 c7x0 user.notice kernel: pccard: PCMCIA card inserted into 
slot 0
Jan  1 00:01:19 c7x0 user.notice kernel: pcmcia: registering new device 
pcmcia0.0
Jan  1 00:01:19 c7x0 user.info kernel: Serial: 8250/16550 driver $Revision: 
1.90 $ 4 ports, IRQ sharing disabled
Jan  1 00:01:20 c7x0 user.warn kernel: pcmcia: CIS filename is too long
Jan  1 00:01:20 c7x0 user.warn kernel: pcmcia: CIS filename is too long
Jan  1 00:01:20 c7x0 user.warn kernel: pcmcia: request for exclusive IRQ could 
not be fulfilled.
Jan  1 00:01:20 c7x0 user.warn kernel: pcmcia: the driver needs updating to 
supported shared IRQ lines.
Jan  1 00:01:20 c7x0 user.info kernel: 0.0: ttyS4 at I/O 0xc48203f8 (irq = 40) 
is a 16550A
---

(the reason for the bogus dates is that c750 for some reason does not preserve
the date/time across reboots)

The device is set as /dev/ttyS4 which is already strange because under OZ
(where the modem was working without trouble) it was /dev/ttyS3.

Tha problem is that the modem does not respond to any command and is unusable
(with no further messages in dmesg or /var/log/messages). I actually tried
using all the ports from /dev/ttyS0 to /dev/ttyS4 (with minicom and my normal
ppp scripts). I checked on my laptop and the modem is OK. 
I get the same results both in a "normal" installation and in an "altboot to
SD" one (which are more or less the same with kernel 2.6.21, pcmciautils
014-r1, fully updated).

It is a pity, because otherwise the latest Angstrom is great (no problems with
any other app, or with my wireless card etc.).

I didn't find anything in the bugtracker. Am I missing something obvious or
should I file a bug?

-- 
Grigoris Prasinos
PhD student, Computer Engineering and Informatics Dept., U of Patras, Greece
http://grigorios.prasinos.eu/
PGP/GPG Key fingerprint = CDC7 BA79 3C5D 9520 F9F1  FC56 6B2A 2EEB 0227 C528

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-- 

Mit freundlichen Grüßen


Michael Peintinger


--------------------------------

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