Hi Cristian,

the syscall "open" fails on the modem device: open(mdm->device, O_RDWR | O_NOCTTY );

it might be a permission problem (not sure) or a concurrent access on the device.

regards, bogdan

Cristian Caprar wrote:

How can I diagnose a problem in the SMS module when opening a modem?

I see the following line in the log: DEBUG: modem_process: opening modem

After about 5 minutes, I see the next one: ERROR:modem_process: cannot open modem Siemens_S45! Resource temporarily unavailable

All happens in libsms_modem.c, line 423, where open() is called. The call blocks for about 5 minutes and afterwards I see the above error in the log.

I tried to connect to the modem via minicom (on /dev/ttyS0) and everything is just fine.

Thanks,

Cristian

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