eden-desta edited a comment on issue #4188:
URL:
https://github.com/apache/incubator-nuttx/issues/4188#issuecomment-883688441
Thank @michallenc @saramonteiro @acassis all for taking the time!
So I have attempted to do this as you said above. And these are the steps I
took without any success.
the `stm32_bringup.c` file located in
`nuttx/boards/arm/stm32h7/nucleo-h743zi2/src`
Already had:
```
#if !defined(CONFIG_ARCH_LEDS) && defined(CONFIG_USERLED_LOWER)
/* Register the LED driver */
ret = userled_lower_initialize("/dev/userleds");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
}
#endif
```
So, instead what i did was i edited the `.config` file manually.
```
CONFIG_USERLED=y
CONFIG_USERLED_LOWER=y
...
CONFIG_ARCH_HAVE_LEDS=y
# CONFIG_ARCH_LEDS is not set
# CONFIG_ARCH_LEDS_CPU_ACTIVITY is not set
```
I had to make some updates to
`boards/arm/stm32h7/nucleo-h743zi2/src/stm32_userleds.c` from `GPIO_LED_BLUE`
to `GPIO_LED_ORANGE`
In the `stm32_bringup.c` file I had to include `<nuttx/leds/userled.h>`
With all this said and done it build and was able to compile. However, when
I run it I still get the same error.
```
nsh> leds
leds_main: Starting the led_daemon
leds_main: led_daemon started
led_daemon (pid# 3): Running
led_daemon: Opening /dev/userleds
led_daemon: ERROR: Failed to open /dev/userleds: 2
led_daemon: Terminating
```
I ran `ls /dev` and the return value was:
```
nsh> ls /dev
/dev:
console
null
ttyS0
```
So IDK what I am still missing even though I definitely think I am further
on that I was before hahaha!
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