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broadband-modem-qmi|mbim: allow limiting multiplexed links with udev tags

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Certain QMI or MBIM devices may not be able to support multiplexing at
all, or they may support a limited amount of links.

The new ID_MM_MAX_MULTIPLEXED_LINKS udev tag allows specifying the
maximum number of supported multiplexed links; e.g. 0 to report none
supported or 1 to report that one single multiplexed link is
supported.
This commit is contained in:
Aleksander Morgado
2023-06-16 20:58:04 +00:00
parent 547d40009c
commit 3004a3e532
8 changed files with 174 additions and 15 deletions
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include/ModemManager-tags.h
+17
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@@ -270,6 +270,23 @@
*/
#define ID_MM_REQUIRED "ID_MM_REQUIRED"
/**
* ID_MM_MAX_MULTIPLEXED_LINKS:
*
* This is a device-specific tag that allows users to specify the maximum amount
* of multiplexed links the modem supports.
*
* An integer value greater or equal than 0 must be given. The value 0 in this
* tag completely disables the multiplexing support in the device.
*
* This setting does nothing if the modem doesn't support multiplexing, or if the
* value configured is greater than the one specified by the modem itself (e.g.
* the control protocol in use also limits this value).
*
* Since: 1.22
*/
#define ID_MM_MAX_MULTIPLEXED_LINKS "ID_MM_MAX_MULTIPLEXED_LINKS"
/*
* The following symbols are deprecated. We don't add them to -compat
* because this -tags file is not really part of the installed API.