just for the archive, this patch solved my problem:
commit f3129943ca6748d867ea6e9930b962b65d01ee47
Author: juhosg
AuthorDate: Tue Mar 31 21:31:36 2015 +
Commit: juhosg
CommitDate: Tue Mar 31 21:31:36 2015 +
ar71xx: fix platform device support in the gpio-74x164 driver
hi,
my Archer-c5 and tplink 4300 routers do have 10 LEDs, but in the sysfs
only the following LEDs are usable/visible:
$ ls /sys/class/leds
ath9k-phy1 tp-link:blue:wlan2g tp-link:green:usb2
tp-link:blue:qss tp-link:blue:wlan5g
tp-link:blue:system tp-link:green:usb1
$ cat /sys/
