Linux Manuals session 9

enum_sock_type – Socket types Synopsis enum sock_type { SOCK_STREAM, SOCK_DGRAM, SOCK_RAW, SOCK_RDM, SOCK_SEQPACKET, SOCK_DCCP, SOCK_PACKET }; Constants SOCK_STREAM stream (connection) socket SOCK_DGRAM datagram (conn.less) socket SOCK_RAW raw socket SOCK_RDM reliably-delivered message SOCK_SEQPACKET sequential packet socket SOCK_DCCP Datagram Congestion Control Protocol socket SOCK_PACKET linux specific way of getting packets at the dev level. For writing rarp…

enum_sndrv_compress_encoder – Synopsis enum sndrv_compress_encoder { SNDRV_COMPRESS_ENCODER_PADDING, SNDRV_COMPRESS_ENCODER_DELAY }; Constants SNDRV_COMPRESS_ENCODER_PADDING no of samples appended by the encoder at the end of the track SNDRV_COMPRESS_ENCODER_DELAY no of samples inserted by the encoder at the beginning of the track Copyright

enum_snd_jack_types – Jack types which can be reported Synopsis enum snd_jack_types { SND_JACK_HEADPHONE, SND_JACK_MICROPHONE, SND_JACK_HEADSET, SND_JACK_LINEOUT, SND_JACK_MECHANICAL, SND_JACK_VIDEOOUT, SND_JACK_AVOUT, SND_JACK_LINEIN, SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2, SND_JACK_BTN_3, SND_JACK_BTN_4, SND_JACK_BTN_5 }; Constants SND_JACK_HEADPHONE Headphone SND_JACK_MICROPHONE Microphone SND_JACK_HEADSET Headset SND_JACK_LINEOUT Line out SND_JACK_MECHANICAL Mechanical switch SND_JACK_VIDEOOUT Video out SND_JACK_AVOUT AV (Audio Video) out SND_JACK_LINEIN Line in SND_JACK_BTN_0 Button 0 SND_JACK_BTN_1…

enum_positive_aop_returns – aop return codes with specific semantics Synopsis enum positive_aop_returns { AOP_WRITEPAGE_ACTIVATE, AOP_TRUNCATED_PAGE }; Constants AOP_WRITEPAGE_ACTIVATE Informs the caller that page writeback has completed, that the page is still locked, and should be considered active. The VM uses this hint to return the page to the active list — it won’t be a candidate…

enum_netdev_priv_flags – struct net_device priv_flags Synopsis enum netdev_priv_flags { IFF_802_1Q_VLAN, IFF_EBRIDGE, IFF_BONDING, IFF_ISATAP, IFF_WAN_HDLC, IFF_XMIT_DST_RELEASE, IFF_DONT_BRIDGE, IFF_DISABLE_NETPOLL, IFF_MACVLAN_PORT, IFF_BRIDGE_PORT, IFF_OVS_DATAPATH, IFF_TX_SKB_SHARING, IFF_UNICAST_FLT, IFF_TEAM_PORT, IFF_SUPP_NOFCS, IFF_LIVE_ADDR_CHANGE, IFF_MACVLAN, IFF_XMIT_DST_RELEASE_PERM, IFF_IPVLAN_MASTER, IFF_IPVLAN_SLAVE, IFF_L3MDEV_MASTER, IFF_NO_QUEUE, IFF_OPENVSWITCH, IFF_L3MDEV_SLAVE, IFF_TEAM, IFF_RXFH_CONFIGURED, IFF_PHONY_HEADROOM, IFF_MACSEC }; Constants IFF_802_1Q_VLAN 802.1Q VLAN device IFF_EBRIDGE Ethernet bridging device IFF_BONDING bonding master or slave IFF_ISATAP ISATAP interface…

enum_nand_data_interface_type – NAND interface timing type Synopsis enum nand_data_interface_type { NAND_SDR_IFACE }; Constants NAND_SDR_IFACE Single Data Rate interface Author Thomas Gleixner <tglx [at] linutronix.de> Author. Copyright

enum_irq_gc_flags – Initialization flags for generic irq chips Synopsis enum irq_gc_flags { IRQ_GC_INIT_MASK_CACHE, IRQ_GC_INIT_NESTED_LOCK, IRQ_GC_MASK_CACHE_PER_TYPE, IRQ_GC_NO_MASK, IRQ_GC_BE_IO }; Constants IRQ_GC_INIT_MASK_CACHE Initialize the mask_cache by reading mask reg IRQ_GC_INIT_NESTED_LOCK Set the lock class of the irqs to nested for irq chips which need to call irq_set_wake on the parent irq. Usually GPIO implementations IRQ_GC_MASK_CACHE_PER_TYPE Mask cache…

end_page_writeback – end writeback against a page Synopsis void end_page_writeback(struct page *page); Arguments page the page Copyright

encode_rs8 – Calculate the parity for data values (8bit data width) Synopsis int encode_rs8(struct rs_control *rs, uint8_t *data, int len, uint16_t *par, uint16_t invmsk); Arguments rs the rs control structure data data field of a given type len data length par parity data, must be initialized by caller (usually all 0) invmsk invert data mask…

encode_rs16 – Calculate the parity for data values (16bit data width) Synopsis int encode_rs16(struct rs_control *rs, uint16_t *data, int len, uint16_t *par, uint16_t invmsk); Arguments rs the rs control structure data data field of a given type len data length par parity data, must be initialized by caller (usually all 0) invmsk invert data mask…

enable_irq – enable handling of an irq Synopsis void enable_irq(unsigned int irq); Arguments irq Interrupt to enable Description Undoes the effect of one call to disable_irq. If this matches the last disable, processing of interrupts on this IRQ line is re-enabled. This function may be called from IRQ context only when desc->irq_data.chip->bus_lock and desc->chip->bus_sync_unlock are…

enable_cmf – switch on the channel measurement for a specific device Synopsis int enable_cmf(struct ccw_device *cdev); Arguments cdev The ccw device to be enabled Description Returns 0 for success or a negative error value. Note If this is called on a device for which channel measurement is already enabled a reset of the measurement data…

edd_show_raw_data – copies raw data to buffer for userspace to parse Synopsis ssize_t edd_show_raw_data(struct edd_device * edev, char * buf); Arguments edev target edd_device buf output buffer Return number of bytes written, or -EINVAL on failure Copyright

edd_release – free edd structure Synopsis void edd_release(struct kobject *kobj); Arguments kobj kobject of edd structure Description This is called when the refcount of the edd structure reaches 0. This should happen right after we unregister, but just in case, we use the release callback anyway. Copyright

edd_init – creates sysfs tree of EDD data Synopsis int edd_init(void); Arguments void no arguments Copyright

edd_get_pci_dev – finds pci_dev that matches edev Synopsis struct pci_dev *edd_get_pci_dev(struct edd_device *edev); Arguments edev edd_device Description Returns pci_dev if found, or NULL Copyright

edd_dev_is_type – is this EDD device a ‘type’ device? Synopsis int edd_dev_is_type(struct edd_device *edev, const char *type); Arguments edev target edd_device type a host bus or interface identifier string per the EDD spec Description Returns 1 (TRUE) if it is a ‘type’ device, 0 otherwise. Copyright

drop_nlink – directly drop an inode’s link count Synopsis void drop_nlink(struct inode *inode); Arguments inode inode Description This is a low-level filesystem helper to replace any direct filesystem manipulation of i_nlink. In cases where we are attempting to track writes to the filesystem, a decrement to zero means an imminent write when the file is…

do_splice_direct – splices data directly between two files Synopsis long do_splice_direct(struct file *in, loff_t *ppos, struct file *out, loff_t *opos, size_t len, unsigned int flags); Arguments in file to splice from ppos input file offset out file to splice to opos output file offset len number of bytes to splice flags splice modifier flags Description…

do_pata_set_dmamode – Initialize host controller PATA PIO timings Synopsis void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, int isich); Arguments ap Port whose timings we are configuring adev Drive in question isich set if the chip is an ICH device Description Set UDMA mode for device, in host controller PCI config space. LOCKING: None (inherited from…