dmi_walk – Walk the DMI table and get called back for every record Synopsis int dmi_walk(void (*decode)(const struct dmi_header *, void *), void *private_data); Arguments decode Callback function private_data Private data to be passed to the callback function Description Returns -1 when the DMI table can’t be reached, 0 on success. Copyright
dmi_name_in_vendors – Check if string is in the DMI system or board vendor name Synopsis int dmi_name_in_vendors(const char *str); Arguments str Case sensitive Name Copyright
dmi_match – compare a string to the dmi field (if exists) Synopsis bool dmi_match(enum dmi_field f, const char * str); Arguments f DMI field identifier str string to compare the DMI field to Description Returns true if the requested field equals to the str (including NULL). Copyright
dmi_get_system_info – return DMI data value Synopsis const char *dmi_get_system_info(int field); Arguments field data index (see enum dmi_field) Description Returns one DMI data value, can be used to perform complex DMI data checks. Copyright
dmi_get_date – parse a DMI date Synopsis bool dmi_get_date(int field, int * yearp, int * monthp, int * dayp); Arguments field data index (see enum dmi_field) yearp optional out parameter for the year monthp optional out parameter for the month dayp optional out parameter for the day Description The date field is assumed to be in the form resembling [mm[/dd]]/yy[yy] and the…
dmi_first_match – find dmi_system_id structure matching system DMI data Synopsis const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list); Arguments list array of dmi_system_id structures to match against All non-null elements of the list must match their slot’s (field index’s) data (i.e., each list string must be a substring of the specified DMI slot’s string data) to…
dmi_find_device – find onboard device by type/name Synopsis const struct dmi_device *dmi_find_device(int type, const char *name, const struct dmi_device *from); Arguments type device type or DMI_DEV_TYPE_ANY to match all device types name device name string or NULL to match all from previous device found in search, or NULL for new search. Description Iterates through the…
dmi_check_system – check system DMI data Synopsis int dmi_check_system(const struct dmi_system_id *list); Arguments list array of dmi_system_id structures to match against All non-null elements of the list must match their slot’s (field index’s) data (i.e., each list string must be a substring of the specified DMI slot’s string data) to be considered a successful match….
dmam_pool_destroy – Managed dma_pool_destroy Synopsis void dmam_pool_destroy(struct dma_pool *pool); Arguments pool dma pool that will be destroyed Description Managed dma_pool_destroy. Copyright
dmam_pool_create – Managed dma_pool_create Synopsis struct dma_pool *dmam_pool_create(const char *name, struct device *dev, size_t size, size_t align, size_t allocation); Arguments name name of pool, for diagnostics dev device that will be doing the DMA size size of the blocks in this pool. align alignment requirement for blocks; must be a power of two allocation returned…
dma_pool_free – put block back into dma pool Synopsis void dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t dma); Arguments pool the dma pool holding the block vaddr virtual address of block dma dma address of block Description Caller promises neither device nor driver will again touch this block unless it is first re-allocated. Copyright
dma_pool_destroy – destroys a pool of dma memory blocks. Synopsis void dma_pool_destroy(struct dma_pool *pool); Arguments pool dma pool that will be destroyed Context !in_interrupt Description Caller guarantees that no more memory from the pool is in use, and that nothing will try to use the pool after this call. Copyright
dma_pool_create – Creates a pool of consistent memory blocks, for dma. Synopsis struct dma_pool *dma_pool_create(const char *name, struct device *dev, size_t size, size_t align, size_t boundary); Arguments name name of pool, for diagnostics dev device that will be doing the DMA size size of the blocks in this pool. align alignment requirement for blocks; must…
dma_pool_alloc – get a block of consistent memory Synopsis void *dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle); Arguments pool dma pool that will produce the block mem_flags GFP_* bitmask handle pointer to dma address of block Description This returns the kernel virtual address of a currently unused block, and reports its dma address through the…
disk_unblock_events – unblock disk event checking Synopsis void disk_unblock_events(struct gendisk *disk); Arguments disk disk to unblock events for Description Undo disk_block_events. When the block count reaches zero, it starts events polling if configured. Context Don’t care. Safe to call from irq context. Copyright
disk_stack_limits – adjust queue limits for stacked drivers Synopsis void disk_stack_limits(struct gendisk *disk, struct block_device *bdev, sector_t offset); Arguments disk MD/DM gendisk (top) bdev the underlying block device (bottom) offset offset to beginning of data within component device Description Merges the limits for a top level gendisk and a bottom level block_device. Copyright
disk_replace_part_tbl – replace disk->part_tbl in RCU-safe way Synopsis void disk_replace_part_tbl(struct gendisk *disk, struct disk_part_tbl *new_ptbl); Arguments disk disk to replace part_tbl for new_ptbl new part_tbl to install Description Replace disk->part_tbl with new_ptbl in RCU-safe way. The original ptbl is freed using RCU callback. LOCKING: Matching bd_mutx locked. Copyright
disk_part_iter_next – proceed iterator to the next partition and return it Synopsis struct hd_struct *disk_part_iter_next(struct disk_part_iter *piter); Arguments piter iterator of interest Description Proceed piter to the next partition and return it. Context Don’t care. Copyright
disk_part_iter_init – initialize partition iterator Synopsis void disk_part_iter_init(struct disk_part_iter *piter, struct gendisk *disk, unsigned int flags); Arguments piter iterator to initialize disk disk to iterate over flags DISK_PITER_* flags Description Initialize piter so that it iterates over partitions of disk. Context Don’t care. Copyright
disk_part_iter_exit – finish up partition iteration Synopsis void disk_part_iter_exit(struct disk_part_iter *piter); Arguments piter iter of interest Description Called when iteration is over. Cleans up piter. Context Don’t care. Copyright