gadget_is_superspeed – return true if the hardware handles superspeed Synopsis int gadget_is_superspeed(struct usb_gadget *g); Arguments g controller that might support superspeed Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
gadget_is_stall_supported – return true iff the hardware supports stalling Synopsis int gadget_is_stall_supported(struct usb_gadget *g); Arguments g controller to check for quirk Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
gadget_is_otg – return true iff the hardware is OTG-ready Synopsis int gadget_is_otg(struct usb_gadget *g); Arguments g controller that might have a Mini-AB connector Description This is a runtime test, since kernels with a USB-OTG stack sometimes run on boards which only have a Mini-B (or Mini-A) connector. Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
gadget_is_dualspeed – return true iff the hardware handles high speed Synopsis int gadget_is_dualspeed(struct usb_gadget *g); Arguments g controller that might support both high and full speeds Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
gadget_is_altset_supported – return true iff the hardware supports altsettings Synopsis int gadget_is_altset_supported(struct usb_gadget *g); Arguments g controller to check for quirk Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
gadget_avoids_skb_reserve – return true iff the hardware would like to avoid skb_reserve to improve performance. Synopsis int gadget_avoids_skb_reserve(struct usb_gadget *g); Arguments g controller to check for quirk Author David Brownell <dbrownell [at] users.sourceforge.net> Author. Copyright
futex_wait_setup – Prepare to wait on a futex Synopsis int futex_wait_setup(u32 __user *uaddr, u32 val, unsigned int flags, struct futex_q *q, struct futex_hash_bucket **hb); Arguments uaddr the futex userspace address val the expected value flags futex flags (FLAGS_SHARED, etc.) q the associated futex_q hb storage for hash_bucket pointer to be returned to caller Description Setup…
futex_wait_requeue_pi – Wait on uaddr and take uaddr2 Synopsis int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags, u32 val, ktime_t *abs_time, u32 bitset, u32 __user *uaddr2); Arguments uaddr the futex we initially wait on (non-pi) flags futex flags (FLAGS_SHARED, FLAGS_CLOCKRT, etc.), they must be the same type, no requeueing from private to shared, etc. val the…
futex_wait_queue_me – queue_me and wait for wakeup, timeout, or signal Synopsis void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q, struct hrtimer_sleeper *timeout); Arguments hb the futex hash bucket, must be locked by the caller q the futex_q to queue up on timeout the prepared hrtimer_sleeper, or null for no timeout Author Rusty Russell <rusty [at] rustcorp.com.au>…
futex_top_waiter – Return the highest priority waiter on a futex Synopsis struct futex_q *futex_top_waiter(struct futex_hash_bucket *hb, union futex_key *key); Arguments hb the hash bucket the futex_q’s reside in key the futex key (to distinguish it from other futex futex_q’s) Description Must be called with the hb lock held. Author Rusty Russell <rusty [at] rustcorp.com.au> Author….
futex_requeue – Requeue waiters from uaddr1 to uaddr2 Synopsis int futex_requeue(u32 __user *uaddr1, unsigned int flags, u32 __user *uaddr2, int nr_wake, int nr_requeue, u32 *cmpval, int requeue_pi); Arguments uaddr1 source futex user address flags futex flags (FLAGS_SHARED, etc.) uaddr2 target futex user address nr_wake number of waiters to wake (must be 1 for requeue_pi) nr_requeue…
futex_proxy_trylock_atomic – Attempt an atomic lock for the top waiter Synopsis int futex_proxy_trylock_atomic(u32 __user *pifutex, struct futex_hash_bucket *hb1, struct futex_hash_bucket *hb2, union futex_key *key1, union futex_key *key2, struct futex_pi_state **ps, int set_waiters); Arguments pifutex the user address of the to futex hb1 the from futex hash bucket, must be locked by the caller hb2 the…
futex_lock_pi_atomic – Atomic work required to acquire a pi aware futex Synopsis int futex_lock_pi_atomic(u32 __user *uaddr, struct futex_hash_bucket *hb, union futex_key *key, struct futex_pi_state **ps, struct task_struct *task, int set_waiters); Arguments uaddr the pi futex user address hb the pi futex hash bucket key the futex key associated with uaddr and hb ps the pi_state…
fsl_rio_setup – Setup Freescale PowerPC RapidIO interface Synopsis int fsl_rio_setup(struct platform_device *dev); Arguments dev platform_device pointer Description Initializes MPC85xx RapidIO hardware interface, configures master port with system-specific info, and registers the master port with the RapidIO subsystem. Author Matt Porter <mporter [at] kernel.crashing.org>, <mporter [at] mvista.com> Author. Copyright
fsl_rio_config_write – Generate a MPC85xx write maintenance transaction Synopsis int fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid, u8 hopcount, u32 offset, int len, u32 val); Arguments mport RapidIO master port info index ID of RapdiIO interface destid Destination ID of transaction hopcount Number of hops to target device offset Offset into configuration space len Length…
fsl_rio_config_read – Generate a MPC85xx read maintenance transaction Synopsis int fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid, u8 hopcount, u32 offset, int len, u32 *val); Arguments mport RapidIO master port info index ID of RapdiIO interface destid Destination ID of transaction hopcount Number of hops to target device offset Offset into configuration space len Length…
fsl_local_config_write – Generate a MPC85xx local config space write Synopsis int fsl_local_config_write(struct rio_mport *mport, int index, u32 offset, int len, u32 data); Arguments mport RapidIO master port info index ID of RapdiIO interface offset Offset into configuration space len Length (in bytes) of the maintenance transaction data Value to be written Description Generates a MPC85xx…
fsl_local_config_read – Generate a MPC85xx local config space read Synopsis int fsl_local_config_read(struct rio_mport *mport, int index, u32 offset, int len, u32 *data); Arguments mport RapidIO master port info index ID of RapdiIO interface offset Offset into configuration space len Length (in bytes) of the maintenance transaction data Value to be read into Description Generates a…
freeze_super – lock the filesystem and force it into a consistent state Synopsis int freeze_super(struct super_block *sb); Arguments sb the super to lock Description Syncs the super to make sure the filesystem is consistent and calls the fs’s freeze_fs. Subsequent calls to this without first thawing the fs will return -EBUSY. During this function, sb->s_writers.frozen…
freeze_bdev – – lock a filesystem and force it into a consistent state Synopsis struct super_block *freeze_bdev(struct block_device *bdev); Arguments bdev blockdevice to lock Description If a superblock is found on this device, we take the s_umount semaphore on it to make sure nobody unmounts until the snapshot creation is done. The reference counter (bd_fsfreeze_count)…