FS#1885 - ath79 / WDR3600: disappeared WLAN5G LED control in kernel 4.14.74 #8060
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hnyman: ath9k LEDs have disappeared from ath79 two weeks ago due to commit ccab68f See discussion in https://forum.openwrt.org/t/is-anybody-working-on-linux-4-14-for-ar71xx-platform-porting-guide-to-ath79/13013/806 |
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sz4bi: thanks for the heads up, btw what kind of problem is solved by this commit? why we want to unload the ath9k module? |
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sz4bi:
device: TPLink WDR3600
platfrom: ath79
I do not know when it happened, in 4.14.63 it's OK, in 4.14.74 it is missing.
I have WLAN5G LED control under kernel 4.14.63
root@OpenWRT:~# uname -aLinux OpenWRT 4.14.63 #0 Thu Aug 16 20:29:28 2018 mips GNU/Linux
root@OpenWRT:~# ls -al /sys/class/leds/
drwxr-xr-x 2 root root 0 Jan 1 1970 .
drwxr-xr-x 26 root root 0 Jan 1 1970 ..
lrwxrwxrwx 1 root root 0 Oct 8 18:03 ath9k-phy0 -> ../../devices/platform/ahb/ahb:apb/18100000.wmac/leds/ath9k-phy0
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:qss -> ../../devices/platform/leds/leds/tp-link:green:qss
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:system -> ../../devices/platform/leds/leds/tp-link:green:system
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:usb1 -> ../../devices/platform/leds/leds/tp-link:green:usb1
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:usb2 -> ../../devices/platform/leds/leds/tp-link:green:usb2
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:wlan2g -> ../../devices/platform/leds/leds/tp-link:green:wlan2g
lrwxrwxrwx 1 root root 0 Oct 8 18:03 tp-link:green:wlan5g -> ../../devices/platform/ath9k-leds/leds/tp-link:green:wlan5g
root@OpenWRT:~# ls -al /sys/devices/platform/leds/leds/
drwxr-xr-x 7 root root 0 Jan 1 1970 .
drwxr-xr-x 3 root root 0 Jan 1 1970 ..
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:qss
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:system
drwxr-xr-x 3 root root 0 Jan 1 1970 tp-link:green:usb1
drwxr-xr-x 3 root root 0 Jan 1 1970 tp-link:green:usb2
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:wlan2g
root@OpenWRT:~# ls -al /sys/devices/platform/ath9k-leds/leds/
drwxr-xr-x 3 root root 0 Oct 8 18:03 .
drwxr-xr-x 3 root root 0 Jan 1 1970 ..
drwxr-xr-x 2 root root 0 Oct 8 18:03 tp-link:green:wlan5g
But with kernel 4.14.74 it is missing
root@OpenWRT:~# uname -aLinux OpenWRT 4.14.74 #0 Mon Oct 8 08:03:23 2018 mips GNU/Linux
root@OpenWRT:~# ls -al /sys/class/leds/
drwxr-xr-x 2 root root 0 Jan 1 1970 .
drwxr-xr-x 26 root root 0 Jan 1 1970 ..
lrwxrwxrwx 1 root root 0 Oct 8 18:07 ath9k-phy0 -> ../../devices/platform/ahb/ahb:apb/18100000.wmac/leds/ath9k-phy0
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:qss -> ../../devices/platform/leds/leds/tp-link:green:qss
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:system -> ../../devices/platform/leds/leds/tp-link:green:system
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:usb1 -> ../../devices/platform/leds/leds/tp-link:green:usb1
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:usb2 -> ../../devices/platform/leds/leds/tp-link:green:usb2
lrwxrwxrwx 1 root root 0 Jan 1 1970 tp-link:green:wlan2g -> ../../devices/platform/leds/leds/tp-link:green:wlan2g
root@OpenWRT:~# ls -al /sys/devices/platform/leds/leds/
drwxr-xr-x 7 root root 0 Jan 1 1970 .
drwxr-xr-x 3 root root 0 Jan 1 1970 ..
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:qss
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:system
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:usb1
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:usb2
drwxr-xr-x 2 root root 0 Jan 1 1970 tp-link:green:wlan2g
root@OpenWRT:~# ls -al /sys/devices/platform/ath9k-leds/leds
ls: /sys/devices/platform/ath9k-leds/leds: No such file or directory
root@OpenWRT:~# ls -al /sys/devices/platform/ath9k-leds/drwxr-xr-x 2 root root 0 Jan 1 1970 .
drwxr-xr-x 13 root root 0 Jan 1 1970 ..
-rw-r--r-- 1 root root 4096 Oct 8 16:38 driver_override
-r--r--r-- 1 root root 4096 Oct 8 16:38 modalias
lrwxrwxrwx 1 root root 0 Oct 8 16:38 of_node -> ../../../firmware/devicetree/base/ath9k-leds
lrwxrwxrwx 1 root root 0 Oct 8 16:38 subsystem -> ../../../bus/platform
-rw-r--r-- 1 root root 4096 Oct 8 16:38 uevent
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