RTEMS CPU Kit with SuperCore 126.96.36.199
The block device transfer request is used to read or write a number of blocks from or to the device. More...
|Block device operation (read or write). |
|Request done callback function. |
|Argument to be passed to callback function. |
|Last IO operation completion status. |
|Number of blocks for this request. |
|The task requesting the IO operation. |
|List of scatter or gather buffers. |
The block device transfer request is used to read or write a number of blocks from or to the device.
Transfer requests are issued to the disk device driver with the RTEMS_BLKIO_REQUEST IO control. The transfer request completion status must be signalled with rtems_blkdev_request_done(). This function must be called exactly once per request. The return value of the IO control will be ignored for transfer requests.