Re: [PATCH] hal probe modem caps ondemand

[Marcel Holtmann <marcel holtmann org>]

Hi Dan,

> > > So what we can do now is remove all the matches for individual devices
> > > in the fdi file, and just match on the driver name for nozomi, airprime,
> > > option, and sierra.  We'll have a few left-over items that aren't driven
> > > by those, but those devices will either use cdc_acm (and therefore be
> > > probed) or we can just tag them to be probed automatically.  Not sure
> > > how this works on BSD and Solaris though; if they don't have separate
> > > drivers to run the mobile broadband cards then they'd have to revert
> > > back to the per-device tagging to know when to probe and when not to
> > > probe.
> > 
> > be careful with this. If the SIM card needs a PIN code first, we might
> > not be able to send any AT commands at all. I tried for example to get
> > the IMEI before entering the PIN, but that never worked on the cards
> > that I own.
> 
> Hmm, does that mean the device will only respond to AT+CPIN"xxxx" until
> you give it the PIN?

basically yes. At least that is what I have observed with modem cards.
Maybe we need to investigate if there are models that allow commands
before the PIN has been entered.

The phone case is different, because in that case you mostly have
entered the PIN code already using the phone's UI.

Regards

Marcel