get_gendisk – get partitioning information for a given device Synopsis struct gendisk *get_gendisk(dev_t devt, int *partno); Arguments devt device to get partitioning information for partno returned partition index Description This function gets the structure containing partitioning information for the given device devt. Copyright
get_futex_key – Get parameters which are the keys for a futex Synopsis int get_futex_key(u32 __user *uaddr, int fshared, union futex_key *key, int rw); Arguments uaddr virtual address of the futex fshared 0 for a PROCESS_PRIVATE futex, 1 for PROCESS_SHARED key address where result is stored. rw mapping needs to be read/write (values: VERIFY_READ, VERIFY_WRITE) Return…
get_ccwdev_by_dev_id – obtain device from a ccw device id Synopsis struct ccw_device *get_ccwdev_by_dev_id(struct ccw_dev_id *dev_id); Arguments dev_id id of the device to be searched Description This function searches all devices attached to the ccw bus for a device matching dev_id. Return If a device is found its reference count is increased and returned; else NULL…
get_ccwdev_by_busid – obtain device from a bus id Synopsis struct ccw_device *get_ccwdev_by_busid(struct ccw_driver *cdrv, const char *bus_id); Arguments cdrv driver the device is owned by bus_id bus id of the device to be searched Description This function searches all devices owned by cdrv for a device with a bus id matching bus_id. Return If a…
get_bbt_block – Get the first valid eraseblock suitable to store a BBT Synopsis int get_bbt_block(struct nand_chip *this, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chip); Arguments this the NAND device td the BBT description md the mirror BBT descriptor chip the CHIP selector Description This functions returns a positive block number pointing a valid eraseblock…
genphy_update_link – update link status in phydev Synopsis int genphy_update_link(struct phy_device *phydev); Arguments phydev target phy_device struct Description Update the value in phydev->link to reflect the current link value. In order to do this, we need to read the status register twice, keeping the second value. Copyright
genphy_soft_reset – software reset the PHY via BMCR_RESET bit Synopsis int genphy_soft_reset(struct phy_device *phydev); Arguments phydev target phy_device struct Description Perform a software PHY reset using the standard BMCR_RESET bit and poll for the reset bit to be cleared. Return 0 on success, < 0 on failure Copyright
genphy_setup_forced – configures/forces speed/duplex from phydev Synopsis int genphy_setup_forced(struct phy_device *phydev); Arguments phydev target phy_device struct Description Configures MII_BMCR to force speed/duplex to the values in phydev. Assumes that the values are valid. Please see phy_sanitize_settings. Copyright
genphy_restart_aneg – Enable and Restart Autonegotiation Synopsis int genphy_restart_aneg(struct phy_device *phydev); Arguments phydev target phy_device struct Copyright
genphy_read_status – check the link status and update current link state Synopsis int genphy_read_status(struct phy_device *phydev); Arguments phydev target phy_device struct Description Check the link, then figure out the current state by comparing what we advertise with what the link partner advertises. Start by checking the gigabit possibilities, then move on to 10/100. Copyright
genphy_config_aneg – restart auto-negotiation or write BMCR Synopsis int genphy_config_aneg(struct phy_device *phydev); Arguments phydev target phy_device struct Description If auto-negotiation is enabled, we configure the advertising, and then restart auto-negotiation. If it is not enabled, then we write the BMCR. Copyright
genphy_config_advert – sanitize and advertise auto-negotiation parameters Synopsis int genphy_config_advert(struct phy_device *phydev); Arguments phydev target phy_device struct Description Writes MII_ADVERTISE with the appropriate values, after sanitizing the values to make sure we only advertise what is supported. Returns < 0 on error, 0 if the PHY’s advertisement hasn’t changed, and > 0 if it has…
genphy_aneg_done – return auto-negotiation status Synopsis int genphy_aneg_done(struct phy_device *phydev); Arguments phydev target phy_device struct Description Reads the status register and returns 0 either if auto-negotiation is incomplete, or if there was an error. Returns BMSR_ANEGCOMPLETE if auto-negotiation is done. Copyright
generic_writepages – walk the list of dirty pages of the given address space and writepage all of them. Synopsis int generic_writepages(struct address_space *mapping, struct writeback_control *wbc); Arguments mapping address space structure to write wbc subtract the number of written pages from *wbc->nr_to_write Description This is a library function, which implements the writepages address_space_operation. Copyright
generic_splice_sendpage – splice data from a pipe to a socket Synopsis ssize_t generic_splice_sendpage(struct pipe_inode_info * pipe, struct file * out, loff_t * ppos, size_t len, unsigned int flags); Arguments pipe pipe to splice from out socket to write to ppos position in out len number of bytes to splice flags splice modifier flags Description Will send len bytes from the pipe to a…
generic_shutdown_super – common helper for ->kill_sb Synopsis void generic_shutdown_super(struct super_block *sb); Arguments sb superblock to kill Description generic_shutdown_super does all fs-independent work on superblock shutdown. Typical ->kill_sb should pick all fs-specific objects that need destruction out of superblock, call generic_shutdown_super and release aforementioned objects. Note: dentries and inodes _are_ taken care of and do not…
generic_setlease – sets a lease on an open file Synopsis int generic_setlease(struct file *filp, long arg, struct file_lock **flp, void **priv); Arguments filp file pointer arg type of lease to obtain flp input – file_lock to use, output – file_lock inserted priv private data for lm_setup (may be NULL if lm_setup doesn’t require it) Description…
generic_pipe_buf_steal – attempt to take ownership of a pipe_buffer Synopsis int generic_pipe_buf_steal(struct pipe_inode_info *pipe, struct pipe_buffer *buf); Arguments pipe the pipe that the buffer belongs to buf the buffer to attempt to steal Description This function attempts to steal the struct page attached to buf. If successful, this function returns 0 and returns with the…
generic_pipe_buf_release – put a reference to a struct pipe_buffer Synopsis void generic_pipe_buf_release(struct pipe_inode_info *pipe, struct pipe_buffer *buf); Arguments pipe the pipe that the buffer belongs to buf the buffer to put a reference to Description This function releases a reference to buf. Copyright
generic_pipe_buf_get – get a reference to a struct pipe_buffer Synopsis void generic_pipe_buf_get(struct pipe_inode_info *pipe, struct pipe_buffer *buf); Arguments pipe the pipe that the buffer belongs to buf the buffer to get a reference to Description This function grabs an extra reference to buf. It’s used in in the tee system call, when we duplicate the…