Multiple instances of libqmi

Krishna Kishore krishna.kishore at sasken.com
Tue Jul 24 15:57:32 UTC 2018


Hi Aleksander,

   Thanks for answering my questions.

    I have one more question.

    How do dual (Multiple) SIMs are supported? Will single QmiDevice be able to enumerate multiple SIMs and allow control/configure multiple SIMs?

Regards,
Kishore

Krishna Kishore
Senior Architect – Devices



Sasken Technologies Limited
139/25, Ring Road, Domlur, Bengaluru - 560 071, India
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-----Original Message-----
From: Aleksander Morgado [mailto:aleksander at aleksander.es]
Sent: 27 February 2018 19:32
To: Krishna Kishore
Cc: libqmi-devel at lists.freedesktop.org; Praveen Kumar
Subject: Re: Multiple instances of libqmi

>
>    Thanks for your response. This helps.
>
>    Can you please let us know about the following?  How does it map to multiple QmiDevices?   We will use more than 1 Telit modules of same product id.
>
>            ==== This is from drivers/net/usb/qmi_wwan.c ===
>               {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},      /* Telit LE920 */
>         {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)},    /* Telit LE920 */
>            =====
>

The kernel will create different /dev/cdc-wdmX devices for each modem, even if they all have the same vid:pid. Each QmiDevice will be associated to a different cdc-wdmX device.

--
Aleksander
https://aleksander.es
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