regulator_bulk_disable – disable multiple regulator consumers Synopsis int regulator_bulk_disable(int num_consumers, struct regulator_bulk_data *consumers); Arguments num_consumers Number of consumers consumers Consumer data; clients are stored here. return 0 on success, an errno on failure Description This convenience API allows consumers to disable multiple regulator clients in a single API call. If any consumers cannot be disabled…
regulator_allow_bypass – allow the regulator to go into bypass mode Synopsis int regulator_allow_bypass(struct regulator *regulator, bool enable); Arguments regulator Regulator to configure enable enable or disable bypass mode Description Allow the regulator to go into bypass mode if all other consumers for the regulator also enable bypass mode and the machine constraints allow this. Bypass…
register_netdevice_notifier – register a network notifier block Synopsis int register_netdevice_notifier(struct notifier_block *nb); Arguments nb notifier Description Register a notifier to be called when network device events occur. The notifier passed is linked into the kernel structures and must not be reused until it has been unregistered. A negative errno code is returned on a failure….
register_netdevice – register a network device Synopsis int register_netdevice(struct net_device *dev); Arguments dev device to register Description Take a completed network device structure and add it to the kernel interfaces. A NETDEV_REGISTER message is sent to the netdev notifier chain. 0 is returned on success. A negative errno code is returned on a failure to…
register_netdev – register a network device Synopsis int register_netdev(struct net_device *dev); Arguments dev device to register Description Take a completed network device structure and add it to the kernel interfaces. A NETDEV_REGISTER message is sent to the netdev notifier chain. 0 is returned on success. A negative errno code is returned on a failure to…
register_filesystem – register a new filesystem Synopsis int register_filesystem(struct file_system_type *fs); Arguments fs the file system structure Description Adds the file system passed to the list of file systems the kernel is aware of for mount and other syscalls. Returns 0 on success, or a negative errno code on an error. The struct file_system_type that…
register_chrdev_region – register a range of device numbers Synopsis int register_chrdev_region(dev_t from, unsigned count, const char *name); Arguments from the first in the desired range of device numbers; must include the major number. count the number of consecutive device numbers required name the name of the device or driver. Description Return value is zero on…
register_blkdev – register a new block device Synopsis int register_blkdev(unsigned int major, const char *name); Arguments major the requested major device number [1..255]. If major=0, try to allocate any unused major number. name the name of the new block device as a zero terminated string Description The name must be unique within the system. The…
register_adapter_interrupt – register adapter interrupt handler Synopsis int register_adapter_interrupt(struct airq_struct *airq); Arguments airq pointer to adapter interrupt descriptor Description Returns 0 on success, or -EINVAL. Author Cornelia Huck <cornelia.huck [at] de.ibm.com> Author. Copyright
region_intersects – determine intersection of region with known resources Synopsis int region_intersects(resource_size_t start, size_t size, unsigned long flags, unsigned long desc); Arguments start region start address size size of region flags flags of resource (in iomem_resource) desc descriptor of resource (in iomem_resource) or IORES_DESC_NONE Description Check if the specified region partially overlaps or fully eclipses…
reallocate_resource – allocate a slot in the resource tree given range & alignment. The resource will be relocated if the new size cannot be reallocated in the current location. Synopsis int reallocate_resource(struct resource *root, struct resource *old, resource_size_t newsize, struct resource_constraint *constraint); Arguments root root resource descriptor old resource descriptor desired by caller newsize new…
read_zsreg – Read a register from a Z85230 Synopsis u8 read_zsreg(struct z8530_channel * c, u8 reg); Arguments c Z8530 channel to read from (2 per chip) reg Register to read FIXME: Use a spinlock. Most of the Z8530 registers are indexed off the control registers. A read is done by writing to the control register and reading the…
read_zsdata – Read the data port of a Z8530 channel Synopsis u8 read_zsdata(struct z8530_channel * c); Arguments c The Z8530 channel to read the data port from Description The data port provides fast access to some things. We still have all the 5uS delays to worry about. Author Alan Cox <alan [at] lxorguk.ukuu.org.uk> Author. Copyright
read_cache_pages – populate an address space with some pages & start reads against them Synopsis int read_cache_pages(struct address_space *mapping, struct list_head *pages, int (*filler)(void *, struct page *), void *data); Arguments mapping the address_space pages The address of a list_head which contains the target pages. These pages have their ->index populated and are otherwise uninitialised….
read_cache_page_gfp – read into page cache, using specified page allocation flags. Synopsis struct page *read_cache_page_gfp(struct address_space *mapping, pgoff_t index, gfp_t gfp); Arguments mapping the page’s address_space index the page index gfp the page allocator flags to use if allocating Description This is the same as “read_mapping_page(mapping, index, NULL)”, but with any new page allocations done…
read_cache_page – read into page cache, fill it if needed Synopsis struct page *read_cache_page(struct address_space *mapping, pgoff_t index, int (*filler)(void *, struct page *), void *data); Arguments mapping the page’s address_space index the page index filler function to perform the read data first arg to filler(data, page) function, often left as NULL Description Read into…
read_bbt – [GENERIC] Read the bad block table starting from page Synopsis int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, struct nand_bbt_descr *td, int offs); Arguments mtd MTD device structure buf temporary buffer page the starting page num the number of bbt descriptors to read td the bbt describtion table offs block number…
read_abs_bbts – [GENERIC] Read the bad block table(s) for all chips starting at a given page Synopsis void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md); Arguments mtd MTD device structure buf temporary buffer td descriptor for the bad block table md descriptor for the bad block table mirror Description Read the…
read_abs_bbt – [GENERIC] Read the bad block table starting at a given page Synopsis int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip); Arguments mtd MTD device structure buf temporary buffer td descriptor for the bad block table chip read the table for a specific chip, -1 read all chips; applies only if…
rdev_get_id – get regulator ID Synopsis int rdev_get_id(struct regulator_dev *rdev); Arguments rdev regulator Authors Liam Girdwood <lrg [at] slimlogic.co.uk> Author. Mark Brown <broonie [at] opensource.wolfsonmicro.com> Wolfson Microelectronics, Author. Copyright