I2C bus control.
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#include <i2c.h>
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int(* | transfer )(i2c_bus *bus, i2c_msg *msgs, uint32_t msg_count) |
| Transfers I2C messages.
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int(* | set_clock )(i2c_bus *bus, unsigned long clock) |
| Sets the bus clock.
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void(* | destroy )(i2c_bus *bus) |
| Destroys the bus.
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rtems_recursive_mutex | mutex |
| Mutex to protect the bus access.
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uint16_t | default_address |
| Default slave device address.
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bool | ten_bit_address |
| Use 10-bit addresses.
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bool | use_pec |
| Use SMBus PEC.
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unsigned long | retries |
| Transfer retry count.
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rtems_interval | timeout |
| Transaction timeout in ticks.
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unsigned long | functionality |
| Controller functionality.
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◆ destroy
void(* i2c_bus::destroy) (i2c_bus *bus) |
Destroys the bus.
- Parameters
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◆ set_clock
int(* i2c_bus::set_clock) (i2c_bus *bus, unsigned long clock) |
Sets the bus clock.
- Parameters
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[in] | bus | The bus control. |
[in] | clock | The desired bus clock in Hz. |
- Return values
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0 | Successful operation. |
negative | Negative error number in case of an error. |
◆ transfer
int(* i2c_bus::transfer) (i2c_bus *bus, i2c_msg *msgs, uint32_t msg_count) |
Transfers I2C messages.
- Parameters
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[in] | bus | The bus control. |
[in] | msgs | The messages to transfer. |
[in] | msg_count | The count of messages to transfer. It must be positive. |
- Return values
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0 | Successful operation. |
negative | Negative error number in case of an error. |
The documentation for this struct was generated from the following file:
- cpukit/include/dev/i2c/i2c.h