pci_bus_max_busnr – returns maximum PCI bus number of given bus’ children Synopsis unsigned char pci_bus_max_busnr(struct pci_bus *bus); Arguments bus pointer to PCI bus structure to search Description Given a PCI bus, returns the highest PCI bus number present in the set including the given PCI bus and its list of child PCI buses. Copyright
pci_bus_find_capability – query for devices’ capabilities Synopsis int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap); Arguments bus the PCI bus to query devfn PCI device to query cap capability code Description Like pci_find_capability but works for pci devices that do not have a pci_dev structure set up yet. Returns the address of the requested…
pci_bus_alloc_resource – allocate a resource from a parent bus Synopsis int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, resource_size_t size, resource_size_t align, resource_size_t min, unsigned long type_mask, resource_size_t (*alignf)(void *, const struct resource *, resource_size_t, resource_size_t), void *alignf_data); Arguments bus PCI bus res resource to allocate size size of resource to allocate align alignment of resource…
pci_bus_add_devices – start driver for PCI devices Synopsis void pci_bus_add_devices(const struct pci_bus *bus); Arguments bus bus to check for new devices Description Start driver for PCI devices and add some sysfs entries. Copyright
pci_bus_add_device – start driver for a single device Synopsis void pci_bus_add_device(struct pci_dev *dev); Arguments dev device to add Description This adds add sysfs entries and start device drivers Copyright
pci_back_from_sleep – turn PCI device on during system-wide transition into working state Synopsis int pci_back_from_sleep(struct pci_dev *dev); Arguments dev Device to handle. Description Disable device’s system wake-up capability and put it into D0. Copyright
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