Device ready function
Prev | Chapter 4. Basic board driver | Next

## Device ready function

If the hardware interface has the ready busy pin of the NAND chip connected to a GPIO or other accesible I/O pin, this function is used to read back the state of the pin. The function has no arguments and should return 0, if the device is busy (R/B pin is low) and 1, if the device is ready (R/B pin is high). If the hardware interface does not give access to the ready busy pin, then the function must not be defined and the function pointer this->dev_ready is set to NULL.

Prev | Up | Next
Hardware control function | Home | Init function