Bug 210738

Summary:	Can't set GPIO 47 on Raspberry Pi Zero.
Product:	Base System	Reporter:	Edward Tomasz Napierala <trasz>
Component:	arm	Assignee:	freebsd-arm (Nobody) <freebsd-arm>
Status:	New ---
Severity:	Affects Only Me	CC:	emaste
Priority:	---
Version:	CURRENT
Hardware:	Any
OS:	Any

Description Edward Tomasz Napierala freebsd_committer

2016-07-01 10:21:45 UTC

Apparently the "ACT" LED on Raspberry Pi Zero is connected to GPIO 47.  However, for some reason I can't set it using gpioctl(1):

root@rpi-b:~ # gpioctl -c 47 out
gpio_pin_set_flags: Invalid argument
root@rpi-b:~ # gpioctl 47 
1
root@rpi-b:~ # gpioctl 47 0
gpio_pin_set: Invalid argument

It looks completely normal in "gpioctl -lv":

pin 47: 1       pin 47<OUT>, caps:<IN,OUT,PU,PD,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN>