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Add some additional I2C error codes

pull/15350/head
Jamie Smith 2022-11-27 21:18:40 -08:00
parent 63fbaaf41d
commit 0c2ee4f142
1 changed files with 3 additions and 2 deletions
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5
hal/include/hal/i2c_api.h
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@ -87,7 +87,8 @@ typedef struct i2c_s i2c_t;
enum { enum {
I2C_ERROR_NO_SLAVE = -1, I2C_ERROR_NO_SLAVE = -1,
I2C_ERROR_BUS_BUSY = -2 I2C_ERROR_BUS_BUSY = -2,
I2C_ERROR_INVALID_USAGE = -3 ///< Invalid usage of the I2C API, e.g. by mixing single-byte and transactional function calls.
}; };
typedef struct { typedef struct {
@ -255,7 +256,7 @@ int i2c_byte_read(i2c_t *obj, int last);
* *
* @param obj The I2C object * @param obj The I2C object
* @param data Byte to be written * @param data Byte to be written
* @return 0 if NAK was received, 1 if ACK was received, 2 for timeout. * @return 0 if NAK was received, 1 if ACK was received, 2 for timeout, or 3 for other error.
*/ */
int i2c_byte_write(i2c_t *obj, int data); int i2c_byte_write(i2c_t *obj, int data);