Bug#605275: EeePC 1005HAG still freezes when probing the builtin 3G modem
On Tue, 2012-02-28 at 11:14 +0100, Maik Zumstrull wrote:
> On Tue, Feb 28, 2012 at 06:09, Dan Williams <dcbw@redhat.com> wrote:
>
> > Notes I'd seen from another driver indicate that it's got a modem/PPP
> > port (intf 0), a DIAG/DM port (intf 1 or 2) and the PCUI port (intf 1 or
> > 2). At least the PCUI port should be able to respond to AT commands
> > too. Can you talk on ttyUSB1 or ttyUSB2 with AT commands?
> >
> > Try "AT^GETPORTMODE" on any port that takes AT commands and see what you
> > get.
>
> ttyUSB0 acts like a modem. That it opens instantly holds with picocom
> as well, the other ones hang for a bit.
> ttyUSB1 doesn't seem to take AT commands (no response).
> ttyUSB2 takes AT commands.
>
> Both AT-capable ports reply "COMMAND NOT SUPPORT" [sic] to AT^GETPORTMODE.
But ttyUSB2 still has the close() blocking problem while ttyUSB0 does
not?
Dan
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