To save anyone else from tearing out more hair than they can afford, be aware that the current files rpi.dts (r276161) and bcm2835.dtsi (r278915) have not yet been updated for the Raspberry Pi Model B+ GPIO pin mappings.
One consequence is that your
when in reality the ACT LED is at pin 47 which the bcm2835.dtsi file shows as READ-ONLY, so it cannot be changed by
One consequence is that your
dmesg will show: gpioled0: <GPIO led> at pin(s) 16 on gpiobus0when in reality the ACT LED is at pin 47 which the bcm2835.dtsi file shows as READ-ONLY, so it cannot be changed by
gpioctl as one might otherwise expect.