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Add I2C Transmit and Receive function (#25637)

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* feat: adds a transmit and receive i2c method

* fix: address the i2c transmit and receive length on u16

* Add AVR/LUFA implementation

Didn't add a progmem version, since that would only apply to receive.
Figured it wasn't worth it, but can add.

* Rearrange order of functions

* Add docs

* Fix doc gen error

* Fix lint issues

* fix more lint issues
This commit is contained in:
Drashna Jaelre
2025-11-11 04:02:35 -08:00
committed by GitHub
parent efc5d63383
commit 28eeb92f8e
4 changed files with 72 additions and 0 deletions
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15
drivers/i2c_master.h
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@@ -72,6 +72,21 @@ i2c_status_t i2c_transmit_P(uint8_t address, const uint8_t* data, uint16_t lengt
*/
i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
/**
* \brief Send multiple bytes and then receive multiple bytes from the selected I2C device.
*
* \param address The 7-bit I2C address of the device.
* \param tx_data A pointer to the data to transmit.
* \param tx_length The number of bytes to write. Take care not to overrun the length of `tx_data`.
* \param rx_data A pointer to a buffer to read into.
* \param rx_length The number of bytes to read. Take care not to overrun the length of `rx_data`.
* \param timeout The time in milliseconds to wait for a response from the target device.
*
* \return `I2C_STATUS_TIMEOUT` if the timeout period elapses, `I2C_STATUS_ERROR` if some other error occurs, otherwise `I2C_STATUS_SUCCESS`.
*/
i2c_status_t i2c_transmit_and_receive(uint8_t address, const uint8_t* tx_data, uint16_t tx_length, uint8_t* rx_data, uint16_t rx_length, uint16_t timeout);
/**
* \brief Write to a register with an 8-bit address on the I2C device.
*