From: Jakub Kicinski Date: Sat, 31 Jan 2026 02:27:02 +0000 (-0800) Subject: Merge branch 'net-wwan-add-nmea-port-type-support' X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eec90ea4ef946d40d82286878477d8becb7cb450;p=thirdparty%2Fkernel%2Flinux.git Merge branch 'net-wwan-add-nmea-port-type-support' Slark Xiao says: ==================== net: wwan: add NMEA port type support The series introduces a long discussed NMEA port type support for the WWAN subsystem. There are two goals. From the WWAN driver perspective, NMEA exported as any other port type (e.g. AT, MBIM, QMI, etc.). From user space software perspective, the exported chardev belongs to the GNSS class what makes it easy to distinguish desired port and the WWAN device common to both NMEA and control (AT, MBIM, etc.) ports makes it easy to locate a control port for the GNSS receiver activation. Done by exporting the NMEA port via the GNSS subsystem with the WWAN core acting as proxy between the WWAN modem driver and the GNSS subsystem. The series starts from a cleanup patch. Then three patches prepares the WWAN core for the proxy style operation. Followed by a patch introding a new WWNA port type, integration with the GNSS subsystem and demux. The series ends with a couple of patches that introduce emulated EMEA port to the WWAN HW simulator. The series is the product of the discussion with Loic about the pros and cons of possible models and implementation. Also Muhammad and Slark did a great job defining the problem, sharing the code and pushing me to finish the implementation. Daniele has caught an issue on driver unloading and suggested an investigation direction. What was concluded by Loic. Many thanks. ==================== Link: https://patch.msgid.link/20260126062158.308598-1-slark_xiao@163.com Signed-off-by: Jakub Kicinski --- eec90ea4ef946d40d82286878477d8becb7cb450