DCMD_I2C_STATUS
QNX SDP8.0Customizing a BSPConfigurationDeveloper
#include <hw/i2c.h>
#define DCMD_I2C_STATUS (__DIOF (_DCMD_I2C, 9, i2c_status_t))
The arguments to devctl() are:
Argument | Value |
---|---|
filedes | A file descriptor that you obtained by opening the device. |
dcmd | DCMD_I2C_STATUS |
dev_data_ptr | A pointer to an i2c_status_t |
n_bytes | sizeof(i2c_status_t) |
dev_info_ptr | NULL |
The DCMD_I2C_STATUS command gets the status of the device.
- Input
- None.
- Output
- The status; one of:
- I2C_STATUS_DONE
- The transaction completed (with or without an error).
- I2C_STATUS_ERROR
- An unknown error occurred.
- I2C_STATUS_NACK
- Slave no-acknowledgement.
- I2C_STATUS_ARBL
- Lost arbitration.
- I2C_STATUS_BUSY
- The transaction timed out.
- I2C_STATUS_ABORT
- The transaction was aborted.
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