Re: [MM] [PATCH] iface-modem,novatel-lte: disable network scan in LTE mode

On 03/01/13 20:13, Ben Chan wrote:
> Also, based on my experiments, the modem sometimes seems to hang when
> running AT+COPS=?. This patch avoids AT+COPS=? from being issued when
> the modem is in LTE mdoe.

>From what I can see, it also avoids the Scan when the access tech is

+    if ((access_tech == MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN) ||
+        (access_tech & MM_MODEM_ACCESS_TECHNOLOGY_LTE)) {

So you're really limiting the scanning for networks only to when the
modem is already connected to a given network which is not LTE. I don't
think we shouldn't ban from scanning when access tech is UNKNOWN.

Also, the reply to AT+COPS=? may really take a loong time; you sure it
gets stuck?

I wonder how the scan works when the Novatel LTE modem is handled by the
QMI driver. IIRC Dan said we wouldn't need this specific plugin any more
once the modem is handled by the QMI implementation.


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