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Function rc_i2c_send_bytes

Function Documentation

int rc_i2c_send_bytes(int bus, size_t count, uint8_t *data)

Sends exactly user-defined data without prepending a register address.

Instead of automatically sending a device address before the data which is typical for reading/writing registers, the rc_i2c_send_bytes function send only the data given by the data argument. This is useful for more complicated IO such as uploading firmware to a device.

Parameters

  • bus – [in] The bus

  • count – [in] Number of bytes to send

  • data – [in] The data

Returns

0 on success or -1 on failure