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gpio_isr_register() function
Register GPIO interrupt handler, the handler is an ISR. The handler will be attached to the same CPU core that this function is running on. This ISR function is called whenever any GPIO interrupt occurs. See the alternative gpio_install_isr_service() and gpio_isr_handler_add() API in order to have the driver support per-GPIO ISRs. \verbatim embed:rst:leading-asterisk To disable or remove the ISR, pass the returned handle to the :doc:`interrupt allocation functions `. \endverbatim
Syntax
esp_err_t gpio_isr_register(void (*fn)(void *),
void *arg,
int intr_alloc_flags,
gpio_isr_handle_t *handle);
Implemented in ![]()
gpio.c:583
Return value
- ESP_OK Success ; - ESP_ERR_INVALID_ARG GPIO error - ESP_ERR_NOT_FOUND No free interrupt found with the specified flags
References
Code
Location
Referrer
Call Tree
gpio_isr_register() is called by 1 function and calls 7 functions:
Data Use
gpio_isr_register() reads 11 variables and writes 6 variables: