Hi Tom,
On 04/23/2019 07:42 AM, Nguyen, Tom wrote:
Hi Denis,
Per question, "So doesn't this also cause us to bring the modem offline when we wake
up from resume?"
Yes, it does. While this modem is capable of waking the host CPU via GPIO upon
SMS reception, it doesn't have a handshake mechanism for the host to signal
that it's ready to communicate with the modem, which would allow the host to
prevent the modem from sending the QMI indication too early. Frustratingly,
this handshake does exist if the modem is used with the AT interface. I tried
to convince the vendor that the handshake should be applied to the QMI
interface too, but...
That sounds horrible.
Per comment, "So any state data must be allocated as part of the driver data."
Thanks for the insight. Are you referring to "struct sms_data"?
Yes, correct. Anything that contains state must be allocated on the
heap. For oFono drivers this is typically the driver specific data
structure setup in the .probe method.
I've copied my other email, so hopefully my future responses won't break this
chain.
Also, thank you for helping with the IMEI patch.
No worries. Just FYI, when responding to the list, please refrain from
top-posting. The common open source mailing list etiquette is to
respond in-line.
Regards,
-Denis
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