Re: [PATCH v0] Read EF_ICCID property of SIM

[Denis Kenzior <denkenz@gmail.com>]

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Hi Daniel,

> Hi Denis,
> 
> > > > It's a Option iCON 451. I didn't check what "\r\r\n+CRSM:
> > > > 144,0,"03"\r\n\r\nOK\r\n" exaclty means. I guess I have to check the
> > > > standard.
> > >
> > > (of course I did copy the wrong line)
> > >
> > > ofonod[18879]: Control:< \r\r\n+CRSM: 111,0\r\n\r\nOK\r\n
> >
> > Yes the Option Modems always return +CRSM: 111 -> Unspecified Error
> > whenever we use 'GET RESPONSE'.  It seems that this function is simply
> > not implemented in their firmware, even though reading files directly
> > from the SIM (in the case of EFphase or EFiccid) seems to work.
> 
> Aside from the Option modem I have a Huawei E160 around for testing:
> 
> ofonod[19115]: > AT+CRSM=192,12258\r
> ofonod[19115]: < AT+CRSM=192,12258\r
> ofonod[19115]: < \r\n+CME ERROR: SIM PIN required\r\n
> 
> Looks like it doesn't like the 'GET RESPONSE' either.
> 
> 

There are two possibilities here:
	- The SIM is not per spec and actually requires PIN to be entered before 
reading the EFiccid
	- The Huawei firmware is not per spec and blocks the reading of EFiccid before 
the SIM PIN has been entered

Since you managed to read the EFiccid on the Option hardware, I assume that 
this is a Huawei firmware bug...

Not really oFono's fault, welcome to the wonderful world of GSM hardware.  Get 
yourself an MBM F3507/F3607, their firmware usually gets this right...

> > This needs to be fixed for the Option driver.  Perhaps someone here knows
> > a way...
> 
> Well, if some one tells me what to do I work on it. But I'm a bit lost
> without help.

Me too ;)

Regards,
-Denis