High GPIO pin number doesn't work when compiling mysgw

[F Wolf]

I'm trying to compile mysgw with the IRQ pin set to 360 wich is the pin number for my SBC(Orange Pi 3 LTS)
but after compiling the number has been changed to 104 and that causes an error at runtime.

ERROR attachInterrupt: Unable to open GPIO edge interface for pin 104: Permission denied

Works fine without specifying an IRQ pin, probably because all other pin-numbers are < 255

[Mikael Falkvidd]

attachInterrupt takes an uint8_t, so any value above 255 will result in whatever C does when things don't fit (360 - 256 is 104 so I guess it just ignores the higher bits). This normally result in warnings during compilation. Could you post the full output of the compilation?

[Mikael Falkvidd]

Could you also provide the full configure command? That would make it possible to try to reproduce the problem.

[Mikael Falkvidd]

When using ./configure --my-rf24-irq-pin=360 I get the following warnings, confirming that 360 is truncated to 104:

./hal/transport/RF24/driver/RF24.cpp: In function ‘bool RF24_initialize()’:
<command-line>: warning: unsigned conversion from ‘int’ to ‘uint8_t’ {aka ‘unsigned char’} changes value from ‘360’ to ‘104’ [-Woverflow]
./hal/transport/RF24/driver/RF24.cpp:522:12: note: in expansion of macro ‘MY_RF24_IRQ_PIN’
  hwPinMode(MY_RF24_IRQ_PIN,INPUT);
            ^~~~~~~~~~~~~~~
In file included from ./MySensors.h:39,
                 from examples_linux/mysgw.cpp:82:
<command-line>: warning: unsigned conversion from ‘int’ to ‘uint8_t’ {aka ‘unsigned char’} changes value from ‘360’ to ‘104’ [-Woverflow]
./hal/architecture/Linux/drivers/core/Arduino.h:40:62: note: in definition of macro ‘digitalPinToInterrupt’
 #define digitalPinToInterrupt(pin) RPi.digitalPinToInterrupt(pin)
                                                              ^~~
./hal/transport/RF24/driver/RF24.cpp:537:48: note: in expansion of macro ‘MY_RF24_IRQ_PIN’
  RF24_SPI.usingInterrupt(digitalPinToInterrupt(MY_RF24_IRQ_PIN));
                                                ^~~~~~~~~~~~~~~
<command-line>: warning: unsigned conversion from ‘int’ to ‘uint8_t’ {aka ‘unsigned char’} changes value from ‘360’ to ‘104’ [-Woverflow]
./hal/architecture/Linux/drivers/core/Arduino.h:40:62: note: in definition of macro ‘digitalPinToInterrupt’
 #define digitalPinToInterrupt(pin) RPi.digitalPinToInterrupt(pin)
                                                              ^~~
./hal/transport/RF24/driver/RF24.cpp:539:40: note: in expansion of macro ‘MY_RF24_IRQ_PIN’
  attachInterrupt(digitalPinToInterrupt(MY_RF24_IRQ_PIN), RF24_irqHandler, FALLING);
                                        ^~~~~~~~~~~~~~~
./hal/architecture/Linux/MyMainLinuxGeneric.cpp: In function ‘void handle_sigint(int)’:
<command-line>: warning: unsigned conversion from ‘int’ to ‘uint8_t’ {aka ‘unsigned char’} changes value from ‘360’ to ‘104’ [-Woverflow]
./hal/architecture/Linux/MyMainLinuxGeneric.cpp:45:18: note: in expansion of macro ‘MY_RF24_IRQ_PIN’
  detachInterrupt(MY_RF24_IRQ_PIN);

[F Wolf]

My complete configure command getting this error is

./configure --spi-spidev-device=/dev/spidev1.0 --my-transport=rf24 --my-rf24-channel=76 --my-rf24-ce-pin=117 --my-rf24-cs-pin=227 --my-rf24-irq-pin=360 --my-rf24-pa-level=RF24_PA_MAX

When compiling I get a lot of warnings about different vars getting truncated both with and without specifying a IRQ-pin, in both cases it compiles sucsessfully but with the IRQ-pin specified I get the previous error at runtime.
Without it compiles and seams to run fine eaven though all warnings.

Attaching my output from make.
make.txt