Block Device Disk Management API. More...
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Data Structures | |
| struct | rtems_blkdev_read_ahead |
| Block device read-ahead control. More... | |
| struct | rtems_blkdev_stats |
| Block device statistics. More... | |
| struct | rtems_disk_device |
| Description of a disk device (logical and physical disks). More... | |
Macros | |
| #define | RTEMS_DISK_READ_AHEAD_NO_TRIGGER ((rtems_blkdev_bnum) -1) |
| Trigger value to disable further read-ahead requests. | |
Typedefs | |
| typedef struct rtems_disk_device | rtems_disk_device |
| typedef uint32_t | rtems_blkdev_bnum |
| Block device block index type. | |
| typedef int(* | rtems_block_device_ioctl) (rtems_disk_device *dd, uint32_t req, void *argp) |
| Block device IO control handler type. | |
Functions | |
| rtems_disk_device * | rtems_disk_next (dev_t dev) |
| Disk device iterator. More... | |
| rtems_status_code | rtems_disk_init_phys (rtems_disk_device *dd, uint32_t block_size, rtems_blkdev_bnum block_count, rtems_block_device_ioctl handler, void *driver_data) |
| rtems_status_code | rtems_disk_init_log (rtems_disk_device *dd, rtems_disk_device *phys_dd, rtems_blkdev_bnum block_begin, rtems_blkdev_bnum block_count) |
Disk Device Data | |
Disk Device Maintainance | |
| rtems_status_code | rtems_disk_create_phys (dev_t dev, uint32_t block_size, rtems_blkdev_bnum block_count, rtems_block_device_ioctl handler, void *driver_data, const char *name) |
| Creates a physical disk with device identifier dev. More... | |
| rtems_status_code | rtems_disk_create_log (dev_t dev, dev_t phys, rtems_blkdev_bnum block_begin, rtems_blkdev_bnum block_count, const char *name) |
| Creates a logical disk with device identifier dev. More... | |
| rtems_status_code | rtems_disk_delete (dev_t dev) |
| Deletes a physical or logical disk device with identifier dev. More... | |
| rtems_disk_device * | rtems_disk_obtain (dev_t dev) |
| Returns the disk device descriptor for the device identifier dev. More... | |
| rtems_status_code | rtems_disk_release (rtems_disk_device *dd) |
| Releases the disk device descriptor dd. More... | |
Disk Management | |
| rtems_status_code | rtems_disk_io_initialize (void) |
| Initializes the disk device management. More... | |
| rtems_status_code | rtems_disk_io_done (void) |
| Releases all resources allocated for disk device management. More... | |
Detailed Description
Block Device Disk Management API.
Function Documentation
◆ rtems_disk_next()
| rtems_disk_device* rtems_disk_next | ( | dev_t | dev | ) |
Disk device iterator.
Returns the next disk device descriptor with a device identifier larger than dev. If there is no such device, NULL will be returned. Use minus one to start the search.
rtems_disk_device *dd = (dev_t) -1;
dev = rtems_disk_get_device_identifier(dd);
sc = rtems_disk_release(dd);
}
References RTEMS_SUCCESSFUL.
