librpip

librpipErrorGetDescription

uint32_t librpipErrorGetDescription(char* desc, int len);

Description

This function returns the error description set by a previous function.

Parameters

• char* desc
  A pointer to a char array to hold the error description
• int len
  The length of the char array. If len is less than the error description length then only the first len characters will be copied into the array.

Returns

The length of the error description.

Example

Attempt to toggle an invalid GPIO pin and get the resultant error description.

char desc[200];
if(!librpipGpioPinToggle(32)) {
        librpipErrorGetDescription(&desc[0], sizeof(desc));
}