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I2C: const correctness, checking SDA/SCL GPIOs

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* const correctness in i2c_slave_write_buffer()
* i2c_set_pin() additionally checks whether
  SDA and SCL pins are the same number
This commit is contained in:
Jakob Hasse
2020-02-12 16:38:31 +01:00
committed by StrawHat
parent c65b67115a
commit d230d44e2d
3 changed files with 12 additions and 4 deletions
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components/driver/include/driver/i2c.h
+1 -1
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@@ -315,7 +315,7 @@ esp_err_t i2c_master_cmd_begin(i2c_port_t i2c_num, i2c_cmd_handle_t cmd_handle,
* - ESP_FAIL(-1) Parameter error
* - Others(>=0) The number of data bytes that pushed to the I2C slave buffer.
*/
int i2c_slave_write_buffer(i2c_port_t i2c_num, uint8_t* data, int size, TickType_t ticks_to_wait);
int i2c_slave_write_buffer(i2c_port_t i2c_num, const uint8_t* data, int size, TickType_t ticks_to_wait);
/**
* @brief I2C slave read data from internal buffer. When I2C slave receive data, isr will copy received data