sub_gpio_config |
Top Previous Next |
| Got to SUB-20 page |
|
Synopsis int sub_gpio_config( sub_handle hndl, int set, int* get, int mask )
Configure GPIO state (direction) as input or output. Parameters •set - Bits 0..31 of set parameter correspond to GPIO0..GPIO31 configuration bits. If GPIOn configuration bit is "1" then GPIOn direction is output, otherwise it is input. •*get - Pointer to store current GPIO configuration read from SUB-20. •mask - Bit in set parameter will take effect only if corresponding mask bit is "1". With mask=0 function will only read current GPIO configuration. Return value On success function returns 0. Otherwise error code. Example /* gpio0..6 - input, gpio7 - output */ rc = sub_gpio_config( hndl, 0x00000080, &config, 0x000000FF );
/* read gpio configuration */ rc = sub_gpio_config( hndl, 0, &config, 0 ); See also |