Difference between revisions of "UCM-iMX8M-Mini: Yocto Linux: Known Issues"

Latest revision as of 14:38, 19 November 2024

On-board WiFi module LWB5+ not supported

WiFi connectivity via the on-board interface, equipped with the module Sterling™-LWB5+ is inoperable

Affected kernel versions :

6.6.3

On-board WiFi module does not wake up correctly from deep sleep mode

rtcwake -drtc1 -mmem -s5

Affected kernel versions :

All

Workaround :

echo 30b40000.mmc > /sys/class/mmc_host/mmc1/device/driver/unbind; echo 30b40000.mmc > /sys/class/mmc_host/mmc1/device/driver/bind

On-board WiFi module loses connection on 5GHz band

In some cases the on-board WiFi module might drop connection on 5GHz band. The functionality recovers after a reboot.

Affected kernel versions :

5.10.35

@@ Line 1: / Line 1: @@
-* PulseAudio service is disabled by default (is not started automatically on a boot).
+{{
-* Onboard wi-fi module does not wake up correctly from deep sleep mode.
+IssueCategory|On-board WiFi module LWB5+ not supported|
+* WiFi connectivity via the on-board interface, equipped with the module Sterling™-LWB5+ is inoperable
+:'''Affected kernel versions :'''
+:6.6.3
+}}
+{{
+IssueCategory|On-board WiFi module does not wake up correctly from deep sleep mode|
+* WiFi module stops working after the sleep-wake cycle, such as the following:
+:<pre>rtcwake -drtc1 -mmem -s5</pre>
+:'''Affected kernel versions :'''
+:All
+:'''Workaround :'''
+# Once the device wakes up, re-bind the WiFi module
+:<pre>echo 30b40000.mmc > /sys/class/mmc_host/mmc1/device/driver/unbind; echo 30b40000.mmc > /sys/class/mmc_host/mmc1/device/driver/bind</pre>
+}}
+{{
+IssueCategory|On-board WiFi module loses connection on 5GHz band|
+* In some cases the on-board WiFi module might drop connection on 5GHz band. The functionality recovers after a reboot.
+:'''Affected kernel versions :'''
+:5.10.35
+}}
+[[Category:Linux|Known issues]]
+[[Category:Yocto]]
+[[Category:UCM-iMX8M-Mini]]
+[[Category:SB-UCM-iMX8M-Mini]]