pci_alloc_irq_vectors – allocate multiple IRQs for a device Synopsis int pci_alloc_irq_vectors(struct pci_dev *dev, unsigned int min_vecs, unsigned int max_vecs, unsigned int flags); Arguments dev PCI device to operate on min_vecs minimum number of vectors required (must be >= 1) max_vecs maximum (desired) number of vectors flags flags or quirks for the allocation Description Allocate up…
pci_adjust_legacy_attr – adjustment of legacy file attributes Synopsis void pci_adjust_legacy_attr(struct pci_bus *b, enum pci_mmap_state mmap_type); Arguments b bus to create files under mmap_type I/O port or memory Description Stub implementation. Can be overridden by arch if necessary. Copyright
pci_add_dynid – add a new PCI device ID to this driver and re-probe devices Synopsis int pci_add_dynid(struct pci_driver *drv, unsigned int vendor, unsigned int device, unsigned int subvendor, unsigned int subdevice, unsigned int class, unsigned int class_mask, unsigned long driver_data); Arguments drv target pci driver vendor PCI vendor ID device PCI device ID subvendor PCI…
pathmask_to_pos – find the position of the left-most bit in a pathmask Synopsis u8 pathmask_to_pos(u8 mask); Arguments mask pathmask with at least one bit set Author Cornelia Huck <cornelia.huck [at] de.ibm.com> Author. Copyright
path_put – put a reference to a path Synopsis void path_put(const struct path *path); Arguments path path to put the reference to Description Given a path decrement the reference count to the dentry and the vfsmount. Copyright
path_get – get a reference to a path Synopsis void path_get(const struct path *path); Arguments path path to get the reference to Description Given a path increment the reference count to the dentry and the vfsmount. Copyright
part_round_stats – Round off the performance stats on a struct disk_stats. Synopsis void part_round_stats(int cpu, struct hd_struct *part); Arguments cpu cpu number for stats access part target partition Description The average IO queue length and utilisation statistics are maintained by observing the current state of the queue length and the amount of time it has…
parent_len – find the length of the parent portion of a pathname Synopsis int parent_len(const char *path); Arguments path pathname of which to determine length Copyright
params_rate – Get the sample rate from the hw params Synopsis unsigned int params_rate(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
params_periods – Get the number of periods from the hw params Synopsis unsigned int params_periods(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
params_period_size – Get the period size (in frames) from the hw params Synopsis unsigned int params_period_size(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
params_channels – Get the number of channels from the hw params Synopsis unsigned int params_channels(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
params_buffer_size – Get the buffer size (in frames) from the hw params Synopsis unsigned int params_buffer_size(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
params_buffer_bytes – Get the buffer size (in bytes) from the hw params Synopsis unsigned int params_buffer_bytes(const struct snd_pcm_hw_params *p); Arguments p hw params Copyright
panic_nand_write – [MTD Interface] NAND write with ECC Synopsis int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf); Arguments mtd MTD device structure to offset to write to len number of bytes to write retlen pointer to variable to store the number of written bytes buf the data to write Description…
panic_nand_wait_ready – [GENERIC] Wait for the ready pin after commands. Synopsis void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo); Arguments mtd MTD device structure timeo Timeout Description Helper function for nand_wait_ready used when needing to wait in interrupt context. Author Thomas Gleixner <tglx [at] linutronix.de> Author. Copyright
panic_nand_wait – [GENERIC] wait until the command is done Synopsis void panic_nand_wait(struct mtd_info *mtd, struct nand_chip *chip, unsigned long timeo); Arguments mtd MTD device structure chip NAND chip structure timeo timeout Description Wait for command done. This is a helper function for nand_wait used when we are in interrupt context. May happen when in panic…
panic_nand_get_device – [GENERIC] Get chip for selected access Synopsis void panic_nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state); Arguments chip the nand chip descriptor mtd MTD device structure new_state the state which is requested Description Used when in panic, no locks are taken. Author Thomas Gleixner <tglx [at] linutronix.de> Author. Copyright
pagecache_isize_extended – update pagecache after extension of i_size Synopsis void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to); Arguments inode inode for which i_size was extended from original inode size to new inode size Description Handle extension of inode size either caused by extending truncate or by write starting after current i_size. We mark the page…
pagecache_get_page – find and get a page reference Synopsis struct page *pagecache_get_page(struct address_space *mapping, pgoff_t offset, int fgp_flags, gfp_t gfp_mask); Arguments mapping the address_space to search offset the page index fgp_flags PCG flags gfp_mask gfp mask to use for the page cache data page allocation Description Looks up the page cache slot at mapping &…