vrmay23 opened a new issue, #16097:
URL: https://github.com/apache/nuttx/issues/16097
### Description / Steps to reproduce the issue
1. Configure the target device as: ./tools/configure.sh nucleo-f767zi:evalos
or ./tools/configure.sh nucleo-f767zi:nsh
2. run: make menuconfig
3. active the flag: board_selection / button interrupt support [x]
4. active the flag: device_drive / input device support [x]
5. active the flag: device_drive / input device support / Button inputs [x]
6. active the flag; application_configuration / examples / button driver
example [x]
7. Make sure Button device path has the following path: /dev/buttons
8. save
9. exit menu config
10. make
11. flash via openOCD: openocd -f interface/stlink.cfg -f
target/stm32f7x.cfg -c "init" -c "reset halt" -c "flash write_image erase
nuttx.bin 0x08000000" -c "reset run"
**[bad_behaviour]**
Error while using the examples 'buttons'. It seems the driver can not be
invoked even when all needed configuration was set as expected via menuconfig.
Basically when you type "buttons" at nsh, the following message appears:
"buttons_main: Starting the button_daemon"
"buttons_main: button_daemon started"
"button_daemon: Running"
"button_daemon: Opening /dev/buttons"
**"button_daemon: ERROR: Failed to open /dev/buttons: 2"**
"button_daemon: Terminating"
**[expected_behaviour]**
When all steps are performed properly, as written above, once 'buttons'
application is called on Nuttx Shell, this app must start to run.
**[workaround_solution]**
To solve this issue I proceed like below:
A. Navigate up to ~/nuttxspace/nuttx/boards/arm/stm32f7/nucleo-f767zi/src
B. Open the file 'stm32_bringup.c'
C. Add the following code to this file, just below the line 90:
```
#ifdef CONFIG_INPUT_BUTTONS
ret = btn_lower_initialize("/dev/buttons");
if (ret<0)
{
syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
}
#endif
```
Then, after it, just ran make, then flashed the .bin onto the
microcotroller. When I've called the application 'buttons', this time it worked
as expected and it was possible to use the buttons app!
### On which OS does this issue occur?
[OS: Linux]
### What is the version of your OS?
Ubuntu 24.10
### NuttX Version
NuttX 12.8.0 c4f142e45c-dirty Mar 30 2025 17:30:50 arm nucleo-f767zi
### Issue Architecture
[Arch: arm]
### Issue Area
[Area: Board support]
### Host information
_No response_
### Verification
- [x] I have verified before submitting the report.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
