File Manager

X7ROOT File Manager

Current Path: /usr/include/linux

📁 ..
📄 a.out.h(6.73 KB)
📄 acct.h(3.82 KB)
📄 acrn.h(16.29 KB)
📄 adb.h(1.11 KB)
📄 adfs_fs.h(993 B)
📄 affs_hardblocks.h(1.54 KB)
📄 agpgart.h(3.85 KB)
📄 aio_abi.h(3.32 KB)
📄 am437x-vpfe.h(3.59 KB)
📁 android
📄 apm_bios.h(3.6 KB)
📄 arcfb.h(213 B)
📄 arm_sdei.h(2.69 KB)
📄 aspeed-lpc-ctrl.h(1.74 KB)
📄 aspeed-p2a-ctrl.h(1.86 KB)
📄 atalk.h(1023 B)
📄 atm.h(7.7 KB)
📄 atm_eni.h(648 B)
📄 atm_he.h(406 B)
📄 atm_idt77105.h(955 B)
📄 atm_nicstar.h(1.25 KB)
📄 atm_tcp.h(1.58 KB)
📄 atm_zatm.h(1.5 KB)
📄 atmapi.h(952 B)
📄 atmarp.h(1.27 KB)
📄 atmbr2684.h(3.19 KB)
📄 atmclip.h(576 B)
📄 atmdev.h(7.5 KB)
📄 atmioc.h(1.61 KB)
📄 atmlec.h(2.33 KB)
📄 atmmpc.h(4.13 KB)
📄 atmppp.h(639 B)
📄 atmsap.h(4.85 KB)
📄 atmsvc.h(1.81 KB)
📄 audit.h(21.06 KB)
📄 auto_dev-ioctl.h(4.87 KB)
📄 auto_fs.h(6.28 KB)
📄 auto_fs4.h(451 B)
📄 auxvec.h(1.56 KB)
📄 ax25.h(2.76 KB)
📄 batadv_packet.h(19.87 KB)
📄 batman_adv.h(16.49 KB)
📄 baycom.h(883 B)
📄 bcm933xx_hcs.h(419 B)
📄 bfs_fs.h(1.86 KB)
📄 binfmts.h(776 B)
📄 bits.h(447 B)
📄 blkpg.h(904 B)
📄 blktrace_api.h(4.59 KB)
📄 blkzoned.h(6.34 KB)
📄 bpf.h(272.11 KB)
📄 bpf_common.h(1.33 KB)
📄 bpf_perf_event.h(529 B)
📄 bpfilter.h(465 B)
📄 bpqether.h(981 B)
📄 bsg.h(2.44 KB)
📄 bt-bmc.h(572 B)
📄 btf.h(5.46 KB)
📄 btrfs.h(29.85 KB)
📄 btrfs_tree.h(25.22 KB)
📁 byteorder
📄 cachefiles.h(1.61 KB)
📁 caif
📁 can
📄 can.h(11.23 KB)
📄 capability.h(13.17 KB)
📄 capi.h(3.05 KB)
📄 cciss_defs.h(3.2 KB)
📄 cciss_ioctl.h(2.7 KB)
📄 ccs.h(767 B)
📄 cdrom.h(28.87 KB)
📄 cec-funcs.h(53.14 KB)
📄 cec.h(40.47 KB)
📄 cfm_bridge.h(1.42 KB)
📄 cgroupstats.h(2.17 KB)
📄 chio.h(5.16 KB)
📁 cifs
📄 close_range.h(377 B)
📄 cm4000_cs.h(1.76 KB)
📄 cn_proc.h(4.05 KB)
📄 coda.h(17.79 KB)
📄 coff.h(12.25 KB)
📄 connector.h(2.2 KB)
📄 const.h(987 B)
📄 coresight-stm.h(747 B)
📄 cramfs_fs.h(3.47 KB)
📄 cryptouser.h(5.2 KB)
📄 cuda.h(905 B)
📄 cxl_mem.h(7.73 KB)
📄 cycx_cfm.h(2.92 KB)
📄 dcbnl.h(24.7 KB)
📄 dccp.h(6.29 KB)
📄 devlink.h(22.77 KB)
📄 dlm.h(2.49 KB)
📄 dlm_device.h(2.48 KB)
📄 dlm_netlink.h(1.13 KB)
📄 dlm_plock.h(894 B)
📄 dlmconstants.h(4.96 KB)
📄 dm-ioctl.h(11.48 KB)
📄 dm-log-userspace.h(14.83 KB)
📄 dma-buf.h(5.12 KB)
📄 dma-heap.h(1.36 KB)
📄 dn.h(4.53 KB)
📄 dns_resolver.h(3.86 KB)
📄 dpll.h(8.56 KB)
📄 dqblk_xfs.h(9.17 KB)
📁 dvb
📄 edd.h(5.47 KB)
📄 efs_fs_sb.h(2.17 KB)
📄 elf-em.h(2.57 KB)
📄 elf-fdpic.h(1.1 KB)
📄 elf.h(14.69 KB)
📄 errno.h(23 B)
📄 errqueue.h(1.94 KB)
📄 erspan.h(1.03 KB)
📄 ethtool.h(101.42 KB)
📄 ethtool_netlink.h(6.17 KB)
📄 ethtool_netlink_generated.h(19.17 KB)
📄 eventfd.h(264 B)
📄 eventpoll.h(2.84 KB)
📄 f2fs.h(3.22 KB)
📄 fadvise.h(842 B)
📄 falloc.h(3.56 KB)
📄 fanotify.h(7.7 KB)
📄 fb.h(16.09 KB)
📄 fcntl.h(4.22 KB)
📄 fd.h(11.83 KB)
📄 fdreg.h(5.24 KB)
📄 fib_rules.h(1.99 KB)
📄 fiemap.h(2.71 KB)
📄 filter.h(2.16 KB)
📄 firewire-cdev.h(43.2 KB)
📄 firewire-constants.h(3.16 KB)
📄 fou.h(819 B)
📄 fpga-dfl.h(8.52 KB)
📄 fs.h(12.88 KB)
📄 fscrypt.h(6.41 KB)
📄 fsi.h(2.2 KB)
📄 fsl_hypervisor.h(7.13 KB)
📄 fsl_mc.h(734 B)
📄 fsmap.h(4.29 KB)
📄 fsverity.h(3.11 KB)
📄 fuse.h(25.36 KB)
📄 futex.h(5.98 KB)
📄 gameport.h(897 B)
📄 gen_stats.h(1.49 KB)
📄 genetlink.h(2.19 KB)
📁 genwqe
📄 gfs2_ondisk.h(14.43 KB)
📄 gpio.h(19.46 KB)
📄 gsmmux.h(4.4 KB)
📄 gtp.h(734 B)
📄 handshake.h(1.61 KB)
📄 hash_info.h(971 B)
📁 hdlc
📄 hdlc.h(637 B)
📄 hdlcdrv.h(2.84 KB)
📄 hdreg.h(22.17 KB)
📄 hid.h(2.04 KB)
📄 hiddev.h(6.2 KB)
📄 hidraw.h(1.95 KB)
📄 hpet.h(743 B)
📁 hsi
📄 hsr_netlink.h(1.08 KB)
📄 hw_breakpoint.h(742 B)
📄 hyperv.h(10.89 KB)
📄 i2c-dev.h(1.83 KB)
📄 i2c.h(6.73 KB)
📄 i2o-dev.h(11.28 KB)
📄 i8k.h(1.49 KB)
📄 icmp.h(4.67 KB)
📄 icmpv6.h(4.2 KB)
📄 idxd.h(9.11 KB)
📄 if.h(10.67 KB)
📄 if_addr.h(1.84 KB)
📄 if_addrlabel.h(721 B)
📄 if_alg.h(1.53 KB)
📄 if_arcnet.h(3.63 KB)
📄 if_arp.h(6.41 KB)
📄 if_bonding.h(5.02 KB)
📄 if_bridge.h(20.27 KB)
📄 if_cablemodem.h(986 B)
📄 if_eql.h(1.32 KB)
📄 if_ether.h(8.21 KB)
📄 if_fc.h(1.7 KB)
📄 if_fddi.h(4.27 KB)
📄 if_hippi.h(4.14 KB)
📄 if_infiniband.h(1.22 KB)
📄 if_link.h(52.92 KB)
📄 if_ltalk.h(210 B)
📄 if_macsec.h(6.35 KB)
📄 if_packet.h(7.99 KB)
📄 if_phonet.h(424 B)
📄 if_plip.h(660 B)
📄 if_ppp.h(29 B)
📄 if_pppol2tp.h(3.23 KB)
📄 if_pppox.h(4.76 KB)
📄 if_slip.h(872 B)
📄 if_team.h(2.54 KB)
📄 if_tun.h(4 KB)
📄 if_tunnel.h(5.36 KB)
📄 if_vlan.h(1.79 KB)
📄 if_x25.h(881 B)
📄 if_xdp.h(5.29 KB)
📄 ife.h(351 B)
📄 igmp.h(2.99 KB)
📁 iio
📄 ila.h(1.22 KB)
📄 in.h(10.24 KB)
📄 in6.h(7.36 KB)
📄 in_route.h(936 B)
📄 inet_diag.h(4.9 KB)
📄 inotify.h(3.21 KB)
📄 input-event-codes.h(29.5 KB)
📄 input.h(15.84 KB)
📄 io_uring.h(20.4 KB)
📄 ioctl.h(163 B)
📄 iommufd.h(36.45 KB)
📄 ioprio.h(4.08 KB)
📄 ip.h(4.7 KB)
📄 ip6_tunnel.h(1.91 KB)
📄 ip_vs.h(13.8 KB)
📄 ipc.h(2.05 KB)
📄 ipmi.h(15.08 KB)
📄 ipmi_bmc.h(488 B)
📄 ipmi_msgdefs.h(3.35 KB)
📄 ipmi_ssif_bmc.h(441 B)
📄 ipsec.h(947 B)
📄 ipv6.h(4.07 KB)
📄 ipv6_route.h(1.86 KB)
📄 ipx.h(2.29 KB)
📄 irqnr.h(104 B)
📁 isdn
📄 iso_fs.h(6.33 KB)
📄 isst_if.h(14.92 KB)
📄 ivtv.h(2.95 KB)
📄 ivtvfb.h(1.18 KB)
📄 jffs2.h(6.66 KB)
📄 joystick.h(3.35 KB)
📄 kcm.h(822 B)
📄 kcmp.h(522 B)
📄 kcov.h(1.92 KB)
📄 kd.h(6.3 KB)
📄 kdev_t.h(383 B)
📄 kernel-page-flags.h(900 B)
📄 kernel.h(194 B)
📄 kernelcapi.h(1019 B)
📄 kexec.h(2.05 KB)
📄 keyboard.h(13.14 KB)
📄 keyctl.h(5.86 KB)
📄 kfd_ioctl.h(57.06 KB)
📄 kfd_sysfs.h(5.25 KB)
📄 kvm.h(47.24 KB)
📄 kvm_para.h(1001 B)
📄 l2tp.h(5.61 KB)
📄 landlock.h(11.55 KB)
📄 libc-compat.h(8.09 KB)
📄 limits.h(937 B)
📄 lirc.h(7.95 KB)
📄 llc.h(3.09 KB)
📄 loadpin.h(834 B)
📄 loop.h(3.32 KB)
📄 lp.h(4.09 KB)
📄 lsm.h(1.51 KB)
📄 lwtunnel.h(2.31 KB)
📄 magic.h(3.73 KB)
📄 major.h(4.55 KB)
📄 map_to_7segment.h(6.45 KB)
📄 matroxfb.h(1.43 KB)
📄 max2175.h(1.01 KB)
📄 mdio.h(23.78 KB)
📄 media-bus-format.h(6.75 KB)
📄 media.h(12.46 KB)
📄 mei.h(3.4 KB)
📄 mei_uuid.h(738 B)
📄 membarrier.h(9.14 KB)
📄 memfd.h(1.43 KB)
📄 mempolicy.h(2.51 KB)
📄 meye.h(2.47 KB)
📄 mii.h(9.27 KB)
📄 minix_fs.h(2.07 KB)
📁 misc
📄 mman.h(1.75 KB)
📁 mmc
📄 mmtimer.h(2.07 KB)
📄 module.h(293 B)
📄 mount.h(4.9 KB)
📄 mpls.h(2.25 KB)
📄 mpls_iptunnel.h(761 B)
📄 mptcp.h(3.67 KB)
📄 mptcp_pm.h(4.3 KB)
📄 mqueue.h(2.15 KB)
📄 mroute.h(5.78 KB)
📄 mroute6.h(4.81 KB)
📄 mrp_bridge.h(1.67 KB)
📄 msdos_fs.h(6.57 KB)
📄 msg.h(3.31 KB)
📄 mshv.h(7.93 KB)
📄 mtio.h(7.98 KB)
📄 nbd-netlink.h(2.35 KB)
📄 nbd.h(3.77 KB)
📄 ncsi.h(4.71 KB)
📄 ndctl.h(6.67 KB)
📄 neighbour.h(5.91 KB)
📄 net.h(2.04 KB)
📄 net_dropmon.h(2.85 KB)
📄 net_namespace.h(715 B)
📄 net_shaper.h(2.52 KB)
📄 net_tstamp.h(6.3 KB)
📄 netconf.h(614 B)
📄 netdev.h(5.65 KB)
📄 netdevice.h(2.2 KB)
📁 netfilter
📄 netfilter.h(1.69 KB)
📁 netfilter_arp
📄 netfilter_arp.h(445 B)
📁 netfilter_bridge
📄 netfilter_bridge.h(1.14 KB)
📄 netfilter_decnet.h(1.72 KB)
📁 netfilter_ipv4
📄 netfilter_ipv4.h(1.45 KB)
📁 netfilter_ipv6
📄 netfilter_ipv6.h(1.35 KB)
📄 netlink.h(12.09 KB)
📄 netlink_diag.h(1.49 KB)
📄 netrom.h(807 B)
📄 nexthop.h(3.97 KB)
📄 nfc.h(10.95 KB)
📄 nfs.h(4.36 KB)
📄 nfs2.h(1.43 KB)
📄 nfs3.h(2.4 KB)
📄 nfs4.h(6.54 KB)
📄 nfs4_mount.h(1.89 KB)
📄 nfs_fs.h(1.62 KB)
📄 nfs_idmap.h(2.19 KB)
📄 nfs_mount.h(2.09 KB)
📄 nfsacl.h(718 B)
📁 nfsd
📄 nfsd_netlink.h(1.95 KB)
📄 nilfs2_api.h(7.41 KB)
📄 nilfs2_ondisk.h(17.66 KB)
📄 nitro_enclaves.h(12.85 KB)
📄 nl80211.h(341.33 KB)
📄 nsfs.h(639 B)
📄 nubus.h(8 KB)
📄 nvme_ioctl.h(2.43 KB)
📄 nvram.h(532 B)
📄 omap3isp.h(20.36 KB)
📄 omapfb.h(5.78 KB)
📄 oom.h(511 B)
📄 openat2.h(1.42 KB)
📄 openvswitch.h(40.75 KB)
📄 packet_diag.h(1.63 KB)
📄 param.h(141 B)
📄 parport.h(3.56 KB)
📄 patchkey.h(892 B)
📄 pci.h(1.35 KB)
📄 pci_regs.h(61.89 KB)
📄 pcitest.h(920 B)
📄 perf_event.h(42.68 KB)
📄 personality.h(2.05 KB)
📄 pfkeyv2.h(10.32 KB)
📄 pfrut.h(7.8 KB)
📄 pg.h(2.34 KB)
📄 phantom.h(1.62 KB)
📄 phonet.h(4.57 KB)
📄 pidfd.h(256 B)
📄 pkt_cls.h(18.65 KB)
📄 pkt_sched.h(28.75 KB)
📄 pktcdvd.h(2.63 KB)
📄 pmu.h(5.32 KB)
📄 poll.h(22 B)
📄 posix_acl.h(1.22 KB)
📄 posix_acl_xattr.h(1.09 KB)
📄 posix_types.h(1.07 KB)
📄 ppdev.h(3.21 KB)
📄 ppp-comp.h(2.47 KB)
📄 ppp-ioctl.h(5.59 KB)
📄 ppp_defs.h(5.43 KB)
📄 pps.h(4.62 KB)
📄 pr.h(1.59 KB)
📄 prctl.h(10.81 KB)
📄 psample.h(2.57 KB)
📄 psci.h(5.21 KB)
📄 psp-dbc.h(5.16 KB)
📄 psp-sev.h(7.59 KB)
📄 ptp_clock.h(7.35 KB)
📄 ptrace.h(4.29 KB)
📄 qemu_fw_cfg.h(2.41 KB)
📄 qnx4_fs.h(2.27 KB)
📄 qnxtypes.h(624 B)
📄 qrtr.h(893 B)
📄 quota.h(6.16 KB)
📄 radeonfb.h(360 B)
📁 raid
📄 random.h(1.38 KB)
📄 rds.h(10.91 KB)
📄 reboot.h(1.31 KB)
📄 reiserfs_fs.h(775 B)
📄 reiserfs_xattr.h(533 B)
📄 remoteproc_cdev.h(1.08 KB)
📄 resource.h(2.32 KB)
📄 rfkill.h(6.45 KB)
📄 rio_cm_cdev.h(3.17 KB)
📄 rio_mport_cdev.h(9.11 KB)
📄 rkisp1-config.h(30.63 KB)
📄 romfs_fs.h(1.21 KB)
📄 rose.h(2.18 KB)
📄 route.h(2.28 KB)
📄 rpl.h(814 B)
📄 rpl_iptunnel.h(424 B)
📄 rpmsg.h(1.03 KB)
📄 rpmsg_types.h(288 B)
📄 rseq.h(4.79 KB)
📄 rtc.h(5.19 KB)
📄 rtnetlink.h(20.8 KB)
📄 rxrpc.h(4.81 KB)
📄 scc.h(4.52 KB)
📁 sched
📄 sched.h(6.12 KB)
📄 scif_ioctl.h(6.23 KB)
📄 screen_info.h(2.42 KB)
📄 sctp.h(35.18 KB)
📄 seccomp.h(5.6 KB)
📄 securebits.h(2.64 KB)
📄 sed-opal.h(5.29 KB)
📄 seg6.h(1.14 KB)
📄 seg6_genl.h(589 B)
📄 seg6_hmac.h(423 B)
📄 seg6_iptunnel.h(984 B)
📄 seg6_local.h(3.78 KB)
📄 selinux_netlink.h(1.17 KB)
📄 sem.h(2.98 KB)
📄 serial.h(4.9 KB)
📄 serial_core.h(4.93 KB)
📄 serial_reg.h(15.65 KB)
📄 serio.h(2.09 KB)
📄 sev-guest.h(2.47 KB)
📄 shm.h(3.71 KB)
📄 signal.h(388 B)
📄 signalfd.h(1.2 KB)
📄 smc.h(8.46 KB)
📄 smc_diag.h(2.88 KB)
📄 smiapp.h(1.03 KB)
📄 snmp.h(14.01 KB)
📄 sock_diag.h(1.27 KB)
📄 socket.h(919 B)
📄 sockios.h(6.69 KB)
📄 sonet.h(2.24 KB)
📄 sonypi.h(5.18 KB)
📄 sound.h(1.21 KB)
📄 soundcard.h(44.96 KB)
📁 spi
📄 stat.h(7.23 KB)
📄 stddef.h(1.69 KB)
📄 stm.h(1.25 KB)
📄 string.h(238 B)
📁 sunrpc
📁 surface_aggregator
📄 suspend_ioctls.h(1.4 KB)
📄 swab.h(6.76 KB)
📄 switchtec_ioctl.h(5.14 KB)
📄 sync_file.h(3.49 KB)
📄 synclink.h(8.77 KB)
📄 sysctl.h(25.3 KB)
📄 sysinfo.h(1.02 KB)
📄 target_core_user.h(4.52 KB)
📄 taskstats.h(8.13 KB)
📁 tc_act
📁 tc_ematch
📄 tcp.h(11.65 KB)
📄 tcp_metrics.h(1.94 KB)
📄 tdx-guest.h(1.27 KB)
📄 tee.h(13.09 KB)
📄 termios.h(172 B)
📄 thermal.h(3.23 KB)
📄 time.h(1.71 KB)
📄 time_types.h(1.24 KB)
📄 timerfd.h(936 B)
📄 times.h(278 B)
📄 timex.h(7.63 KB)
📄 tiocl.h(1.69 KB)
📄 tipc.h(8.62 KB)
📄 tipc_config.h(14.52 KB)
📄 tipc_netlink.h(9.17 KB)
📄 tipc_sockets_diag.h(468 B)
📄 tls.h(7.06 KB)
📄 toshiba.h(1.88 KB)
📄 tps6594_pfsm.h(1.13 KB)
📄 tty.h(1.55 KB)
📄 tty_flags.h(4.4 KB)
📄 types.h(1.6 KB)
📄 udf_fs_i.h(697 B)
📄 udmabuf.h(643 B)
📄 udp.h(1.65 KB)
📄 uhid.h(4.54 KB)
📄 uinput.h(9.04 KB)
📄 uio.h(732 B)
📄 uleds.h(798 B)
📄 ultrasound.h(4.46 KB)
📄 um_timetravel.h(3.87 KB)
📄 un.h(384 B)
📄 unistd.h(220 B)
📄 unix_diag.h(1.3 KB)
📁 usb
📄 usbdevice_fs.h(8.12 KB)
📄 usbip.h(1.47 KB)
📄 userfaultfd.h(10.68 KB)
📄 userio.h(1.48 KB)
📄 utime.h(223 B)
📄 utsname.h(669 B)
📄 uuid.h(28 B)
📄 uvcvideo.h(2.57 KB)
📄 v4l2-common.h(2.01 KB)
📄 v4l2-controls.h(94.59 KB)
📄 v4l2-dv-timings.h(30.39 KB)
📄 v4l2-mediabus.h(5.3 KB)
📄 v4l2-subdev.h(9.76 KB)
📄 vbox_err.h(7.09 KB)
📄 vbox_vmmdev_types.h(11.38 KB)
📄 vboxguest.h(9.15 KB)
📄 vdpa.h(1.74 KB)
📄 vduse.h(9.58 KB)
📄 version.h(374 B)
📄 veth.h(224 B)
📄 vfio.h(70.13 KB)
📄 vfio_ccw.h(1.29 KB)
📄 vfio_zdev.h(2.48 KB)
📄 vhost.h(8.24 KB)
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📄 virtio_console.h(3.08 KB)
📄 virtio_crypto.h(13.56 KB)
📄 virtio_fs.h(573 B)
📄 virtio_gpio.h(1.7 KB)
📄 virtio_gpu.h(11.28 KB)
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📄 virtio_ids.h(3.7 KB)
📄 virtio_input.h(2.46 KB)
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📄 virtio_net.h(14.72 KB)
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📄 virtio_pmem.h(641 B)
📄 virtio_ring.h(8.52 KB)
📄 virtio_rng.h(265 B)
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📄 virtio_snd.h(12.86 KB)
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Editing: gpio.h

/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
 * <linux/gpio.h> - userspace ABI for the GPIO character devices
 *
 * Copyright (C) 2016 Linus Walleij
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published by
 * the Free Software Foundation.
 */
#ifndef _GPIO_H_
#define _GPIO_H_

#include <linux/const.h>
#include <linux/ioctl.h>
#include <linux/types.h>

/*
 * The maximum size of name and label arrays.
 *
 * Must be a multiple of 8 to ensure 32/64-bit alignment of structs.
 */
#define GPIO_MAX_NAME_SIZE 32

/**
 * struct gpiochip_info - Information about a certain GPIO chip
 * @name: the Linux kernel name of this GPIO chip
 * @label: a functional name for this GPIO chip, such as a product
 * number, may be empty (i.e. label[0] == '\0')
 * @lines: number of GPIO lines on this chip
 */
struct gpiochip_info {
	char name[GPIO_MAX_NAME_SIZE];
	char label[GPIO_MAX_NAME_SIZE];
	__u32 lines;
};

/*
 * Maximum number of requested lines.
 *
 * Must be no greater than 64, as bitmaps are restricted here to 64-bits
 * for simplicity, and a multiple of 2 to ensure 32/64-bit alignment of
 * structs.
 */
#define GPIO_V2_LINES_MAX 64

/*
 * The maximum number of configuration attributes associated with a line
 * request.
 */
#define GPIO_V2_LINE_NUM_ATTRS_MAX 10

/**
 * enum gpio_v2_line_flag - &struct gpio_v2_line_attribute.flags values
 * @GPIO_V2_LINE_FLAG_USED: line is not available for request
 * @GPIO_V2_LINE_FLAG_ACTIVE_LOW: line active state is physical low
 * @GPIO_V2_LINE_FLAG_INPUT: line is an input
 * @GPIO_V2_LINE_FLAG_OUTPUT: line is an output
 * @GPIO_V2_LINE_FLAG_EDGE_RISING: line detects rising (inactive to active)
 * edges
 * @GPIO_V2_LINE_FLAG_EDGE_FALLING: line detects falling (active to
 * inactive) edges
 * @GPIO_V2_LINE_FLAG_OPEN_DRAIN: line is an open drain output
 * @GPIO_V2_LINE_FLAG_OPEN_SOURCE: line is an open source output
 * @GPIO_V2_LINE_FLAG_BIAS_PULL_UP: line has pull-up bias enabled
 * @GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN: line has pull-down bias enabled
 * @GPIO_V2_LINE_FLAG_BIAS_DISABLED: line has bias disabled
 * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME: line events contain REALTIME timestamps
 * @GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE: line events contain timestamps from
 * hardware timestamp engine
 */
enum gpio_v2_line_flag {
	GPIO_V2_LINE_FLAG_USED			= _BITULL(0),
	GPIO_V2_LINE_FLAG_ACTIVE_LOW		= _BITULL(1),
	GPIO_V2_LINE_FLAG_INPUT			= _BITULL(2),
	GPIO_V2_LINE_FLAG_OUTPUT		= _BITULL(3),
	GPIO_V2_LINE_FLAG_EDGE_RISING		= _BITULL(4),
	GPIO_V2_LINE_FLAG_EDGE_FALLING		= _BITULL(5),
	GPIO_V2_LINE_FLAG_OPEN_DRAIN		= _BITULL(6),
	GPIO_V2_LINE_FLAG_OPEN_SOURCE		= _BITULL(7),
	GPIO_V2_LINE_FLAG_BIAS_PULL_UP		= _BITULL(8),
	GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN	= _BITULL(9),
	GPIO_V2_LINE_FLAG_BIAS_DISABLED		= _BITULL(10),
	GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME	= _BITULL(11),
	GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE	= _BITULL(12),
};

/**
 * struct gpio_v2_line_values - Values of GPIO lines
 * @bits: a bitmap containing the value of the lines, set to 1 for active
 * and 0 for inactive.
 * @mask: a bitmap identifying the lines to get or set, with each bit
 * number corresponding to the index into &struct
 * gpio_v2_line_request.offsets.
 */
struct gpio_v2_line_values {
	__aligned_u64 bits;
	__aligned_u64 mask;
};

/**
 * enum gpio_v2_line_attr_id - &struct gpio_v2_line_attribute.id values
 * identifying which field of the attribute union is in use.
 * @GPIO_V2_LINE_ATTR_ID_FLAGS: flags field is in use
 * @GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES: values field is in use
 * @GPIO_V2_LINE_ATTR_ID_DEBOUNCE: debounce_period_us field is in use
 */
enum gpio_v2_line_attr_id {
	GPIO_V2_LINE_ATTR_ID_FLAGS		= 1,
	GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES	= 2,
	GPIO_V2_LINE_ATTR_ID_DEBOUNCE		= 3,
};

/**
 * struct gpio_v2_line_attribute - a configurable attribute of a line
 * @id: attribute identifier with value from &enum gpio_v2_line_attr_id
 * @padding: reserved for future use and must be zero filled
 * @flags: if id is %GPIO_V2_LINE_ATTR_ID_FLAGS, the flags for the GPIO
 * line, with values from &enum gpio_v2_line_flag, such as
 * %GPIO_V2_LINE_FLAG_ACTIVE_LOW, %GPIO_V2_LINE_FLAG_OUTPUT etc, added
 * together.  This overrides the default flags contained in the &struct
 * gpio_v2_line_config for the associated line.
 * @values: if id is %GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES, a bitmap
 * containing the values to which the lines will be set, with each bit
 * number corresponding to the index into &struct
 * gpio_v2_line_request.offsets.
 * @debounce_period_us: if id is %GPIO_V2_LINE_ATTR_ID_DEBOUNCE, the
 * desired debounce period, in microseconds
 */
struct gpio_v2_line_attribute {
	__u32 id;
	__u32 padding;
	union {
		__aligned_u64 flags;
		__aligned_u64 values;
		__u32 debounce_period_us;
	};
};

/**
 * struct gpio_v2_line_config_attribute - a configuration attribute
 * associated with one or more of the requested lines.
 * @attr: the configurable attribute
 * @mask: a bitmap identifying the lines to which the attribute applies,
 * with each bit number corresponding to the index into &struct
 * gpio_v2_line_request.offsets.
 */
struct gpio_v2_line_config_attribute {
	struct gpio_v2_line_attribute attr;
	__aligned_u64 mask;
};

/**
 * struct gpio_v2_line_config - Configuration for GPIO lines
 * @flags: flags for the GPIO lines, with values from &enum
 * gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
 * %GPIO_V2_LINE_FLAG_OUTPUT etc, added together.  This is the default for
 * all requested lines but may be overridden for particular lines using
 * @attrs.
 * @num_attrs: the number of attributes in @attrs
 * @padding: reserved for future use and must be zero filled
 * @attrs: the configuration attributes associated with the requested
 * lines.  Any attribute should only be associated with a particular line
 * once.  If an attribute is associated with a line multiple times then the
 * first occurrence (i.e. lowest index) has precedence.
 */
struct gpio_v2_line_config {
	__aligned_u64 flags;
	__u32 num_attrs;
	/* Pad to fill implicit padding and reserve space for future use. */
	__u32 padding[5];
	struct gpio_v2_line_config_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
};

/**
 * struct gpio_v2_line_request - Information about a request for GPIO lines
 * @offsets: an array of desired lines, specified by offset index for the
 * associated GPIO chip
 * @consumer: a desired consumer label for the selected GPIO lines such as
 * "my-bitbanged-relay"
 * @config: requested configuration for the lines.
 * @num_lines: number of lines requested in this request, i.e. the number
 * of valid fields in the %GPIO_V2_LINES_MAX sized arrays, set to 1 to
 * request a single line
 * @event_buffer_size: a suggested minimum number of line events that the
 * kernel should buffer.  This is only relevant if edge detection is
 * enabled in the configuration. Note that this is only a suggested value
 * and the kernel may allocate a larger buffer or cap the size of the
 * buffer. If this field is zero then the buffer size defaults to a minimum
 * of @num_lines * 16.
 * @padding: reserved for future use and must be zero filled
 * @fd: if successful this field will contain a valid anonymous file handle
 * after a %GPIO_GET_LINE_IOCTL operation, zero or negative value means
 * error
 */
struct gpio_v2_line_request {
	__u32 offsets[GPIO_V2_LINES_MAX];
	char consumer[GPIO_MAX_NAME_SIZE];
	struct gpio_v2_line_config config;
	__u32 num_lines;
	__u32 event_buffer_size;
	/* Pad to fill implicit padding and reserve space for future use. */
	__u32 padding[5];
	__s32 fd;
};

/**
 * struct gpio_v2_line_info - Information about a certain GPIO line
 * @name: the name of this GPIO line, such as the output pin of the line on
 * the chip, a rail or a pin header name on a board, as specified by the
 * GPIO chip, may be empty (i.e. name[0] == '\0')
 * @consumer: a functional name for the consumer of this GPIO line as set
 * by whatever is using it, will be empty if there is no current user but
 * may also be empty if the consumer doesn't set this up
 * @offset: the local offset on this GPIO chip, fill this in when
 * requesting the line information from the kernel
 * @num_attrs: the number of attributes in @attrs
 * @flags: flags for this GPIO line, with values from &enum
 * gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
 * %GPIO_V2_LINE_FLAG_OUTPUT etc, added together.
 * @attrs: the configuration attributes associated with the line
 * @padding: reserved for future use
 */
struct gpio_v2_line_info {
	char name[GPIO_MAX_NAME_SIZE];
	char consumer[GPIO_MAX_NAME_SIZE];
	__u32 offset;
	__u32 num_attrs;
	__aligned_u64 flags;
	struct gpio_v2_line_attribute attrs[GPIO_V2_LINE_NUM_ATTRS_MAX];
	/* Space reserved for future use. */
	__u32 padding[4];
};

/**
 * enum gpio_v2_line_changed_type - &struct gpio_v2_line_changed.event_type
 * values
 * @GPIO_V2_LINE_CHANGED_REQUESTED: line has been requested
 * @GPIO_V2_LINE_CHANGED_RELEASED: line has been released
 * @GPIO_V2_LINE_CHANGED_CONFIG: line has been reconfigured
 */
enum gpio_v2_line_changed_type {
	GPIO_V2_LINE_CHANGED_REQUESTED	= 1,
	GPIO_V2_LINE_CHANGED_RELEASED	= 2,
	GPIO_V2_LINE_CHANGED_CONFIG	= 3,
};

/**
 * struct gpio_v2_line_info_changed - Information about a change in status
 * of a GPIO line
 * @info: updated line information
 * @timestamp_ns: estimate of time of status change occurrence, in nanoseconds
 * @event_type: the type of change with a value from &enum
 * gpio_v2_line_changed_type
 * @padding: reserved for future use
 */
struct gpio_v2_line_info_changed {
	struct gpio_v2_line_info info;
	__aligned_u64 timestamp_ns;
	__u32 event_type;
	/* Pad struct to 64-bit boundary and reserve space for future use. */
	__u32 padding[5];
};

/**
 * enum gpio_v2_line_event_id - &struct gpio_v2_line_event.id values
 * @GPIO_V2_LINE_EVENT_RISING_EDGE: event triggered by a rising edge
 * @GPIO_V2_LINE_EVENT_FALLING_EDGE: event triggered by a falling edge
 */
enum gpio_v2_line_event_id {
	GPIO_V2_LINE_EVENT_RISING_EDGE	= 1,
	GPIO_V2_LINE_EVENT_FALLING_EDGE	= 2,
};

/**
 * struct gpio_v2_line_event - The actual event being pushed to userspace
 * @timestamp_ns: best estimate of time of event occurrence, in nanoseconds.
 * @id: event identifier with value from &enum gpio_v2_line_event_id
 * @offset: the offset of the line that triggered the event
 * @seqno: the sequence number for this event in the sequence of events for
 * all the lines in this line request
 * @line_seqno: the sequence number for this event in the sequence of
 * events on this particular line
 * @padding: reserved for future use
 *
 * By default the @timestamp_ns is read from %CLOCK_MONOTONIC and is
 * intended to allow the accurate measurement of the time between events.
 * It does not provide the wall-clock time.
 *
 * If the %GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME flag is set then the
 * @timestamp_ns is read from %CLOCK_REALTIME.
 */
struct gpio_v2_line_event {
	__aligned_u64 timestamp_ns;
	__u32 id;
	__u32 offset;
	__u32 seqno;
	__u32 line_seqno;
	/* Space reserved for future use. */
	__u32 padding[6];
};

/*
 * ABI v1
 *
 * This version of the ABI is deprecated.
 * Use the latest version of the ABI, defined above, instead.
 */

/* Informational flags */
#define GPIOLINE_FLAG_KERNEL		(1UL << 0) /* Line used by the kernel */
#define GPIOLINE_FLAG_IS_OUT		(1UL << 1)
#define GPIOLINE_FLAG_ACTIVE_LOW	(1UL << 2)
#define GPIOLINE_FLAG_OPEN_DRAIN	(1UL << 3)
#define GPIOLINE_FLAG_OPEN_SOURCE	(1UL << 4)
#define GPIOLINE_FLAG_BIAS_PULL_UP	(1UL << 5)
#define GPIOLINE_FLAG_BIAS_PULL_DOWN	(1UL << 6)
#define GPIOLINE_FLAG_BIAS_DISABLE	(1UL << 7)

/**
 * struct gpioline_info - Information about a certain GPIO line
 * @line_offset: the local offset on this GPIO device, fill this in when
 * requesting the line information from the kernel
 * @flags: various flags for this line
 * @name: the name of this GPIO line, such as the output pin of the line on the
 * chip, a rail or a pin header name on a board, as specified by the gpio
 * chip, may be empty (i.e. name[0] == '\0')
 * @consumer: a functional name for the consumer of this GPIO line as set by
 * whatever is using it, will be empty if there is no current user but may
 * also be empty if the consumer doesn't set this up
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_info instead.
 */
struct gpioline_info {
	__u32 line_offset;
	__u32 flags;
	char name[GPIO_MAX_NAME_SIZE];
	char consumer[GPIO_MAX_NAME_SIZE];
};

/* Maximum number of requested handles */
#define GPIOHANDLES_MAX 64

/* Possible line status change events */
enum {
	GPIOLINE_CHANGED_REQUESTED = 1,
	GPIOLINE_CHANGED_RELEASED,
	GPIOLINE_CHANGED_CONFIG,
};

/**
 * struct gpioline_info_changed - Information about a change in status
 * of a GPIO line
 * @info: updated line information
 * @timestamp: estimate of time of status change occurrence, in nanoseconds
 * @event_type: one of %GPIOLINE_CHANGED_REQUESTED,
 * %GPIOLINE_CHANGED_RELEASED and %GPIOLINE_CHANGED_CONFIG
 * @padding: reserved for future use
 *
 * The &struct gpioline_info embedded here has 32-bit alignment on its own,
 * but it works fine with 64-bit alignment too. With its 72 byte size, we can
 * guarantee there are no implicit holes between it and subsequent members.
 * The 20-byte padding at the end makes sure we don't add any implicit padding
 * at the end of the structure on 64-bit architectures.
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_info_changed instead.
 */
struct gpioline_info_changed {
	struct gpioline_info info;
	__u64 timestamp;
	__u32 event_type;
	__u32 padding[5]; /* for future use */
};

/* Linerequest flags */
#define GPIOHANDLE_REQUEST_INPUT	(1UL << 0)
#define GPIOHANDLE_REQUEST_OUTPUT	(1UL << 1)
#define GPIOHANDLE_REQUEST_ACTIVE_LOW	(1UL << 2)
#define GPIOHANDLE_REQUEST_OPEN_DRAIN	(1UL << 3)
#define GPIOHANDLE_REQUEST_OPEN_SOURCE	(1UL << 4)
#define GPIOHANDLE_REQUEST_BIAS_PULL_UP	(1UL << 5)
#define GPIOHANDLE_REQUEST_BIAS_PULL_DOWN	(1UL << 6)
#define GPIOHANDLE_REQUEST_BIAS_DISABLE	(1UL << 7)

/**
 * struct gpiohandle_request - Information about a GPIO handle request
 * @lineoffsets: an array of desired lines, specified by offset index for the
 * associated GPIO device
 * @flags: desired flags for the desired GPIO lines, such as
 * %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
 * together. Note that even if multiple lines are requested, the same flags
 * must be applicable to all of them, if you want lines with individual
 * flags set, request them one by one. It is possible to select
 * a batch of input or output lines, but they must all have the same
 * characteristics, i.e. all inputs or all outputs, all active low etc
 * @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set for a requested
 * line, this specifies the default output value, should be 0 (low) or
 * 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
 * @consumer_label: a desired consumer label for the selected GPIO line(s)
 * such as "my-bitbanged-relay"
 * @lines: number of lines requested in this request, i.e. the number of
 * valid fields in the above arrays, set to 1 to request a single line
 * @fd: if successful this field will contain a valid anonymous file handle
 * after a %GPIO_GET_LINEHANDLE_IOCTL operation, zero or negative value
 * means error
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_request instead.
 */
struct gpiohandle_request {
	__u32 lineoffsets[GPIOHANDLES_MAX];
	__u32 flags;
	__u8 default_values[GPIOHANDLES_MAX];
	char consumer_label[GPIO_MAX_NAME_SIZE];
	__u32 lines;
	int fd;
};

/**
 * struct gpiohandle_config - Configuration for a GPIO handle request
 * @flags: updated flags for the requested GPIO lines, such as
 * %GPIOHANDLE_REQUEST_OUTPUT, %GPIOHANDLE_REQUEST_ACTIVE_LOW etc, added
 * together
 * @default_values: if the %GPIOHANDLE_REQUEST_OUTPUT is set in flags,
 * this specifies the default output value, should be 0 (low) or
 * 1 (high), anything else than 0 or 1 will be interpreted as 1 (high)
 * @padding: reserved for future use and should be zero filled
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_config instead.
 */
struct gpiohandle_config {
	__u32 flags;
	__u8 default_values[GPIOHANDLES_MAX];
	__u32 padding[4]; /* padding for future use */
};

/**
 * struct gpiohandle_data - Information of values on a GPIO handle
 * @values: when getting the state of lines this contains the current
 * state of a line, when setting the state of lines these should contain
 * the desired target state
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_values instead.
 */
struct gpiohandle_data {
	__u8 values[GPIOHANDLES_MAX];
};

/* Eventrequest flags */
#define GPIOEVENT_REQUEST_RISING_EDGE	(1UL << 0)
#define GPIOEVENT_REQUEST_FALLING_EDGE	(1UL << 1)
#define GPIOEVENT_REQUEST_BOTH_EDGES	((1UL << 0) | (1UL << 1))

/**
 * struct gpioevent_request - Information about a GPIO event request
 * @lineoffset: the desired line to subscribe to events from, specified by
 * offset index for the associated GPIO device
 * @handleflags: desired handle flags for the desired GPIO line, such as
 * %GPIOHANDLE_REQUEST_ACTIVE_LOW or %GPIOHANDLE_REQUEST_OPEN_DRAIN
 * @eventflags: desired flags for the desired GPIO event line, such as
 * %GPIOEVENT_REQUEST_RISING_EDGE or %GPIOEVENT_REQUEST_FALLING_EDGE
 * @consumer_label: a desired consumer label for the selected GPIO line(s)
 * such as "my-listener"
 * @fd: if successful this field will contain a valid anonymous file handle
 * after a %GPIO_GET_LINEEVENT_IOCTL operation, zero or negative value
 * means error
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_request instead.
 */
struct gpioevent_request {
	__u32 lineoffset;
	__u32 handleflags;
	__u32 eventflags;
	char consumer_label[GPIO_MAX_NAME_SIZE];
	int fd;
};

/*
 * GPIO event types
 */
#define GPIOEVENT_EVENT_RISING_EDGE 0x01
#define GPIOEVENT_EVENT_FALLING_EDGE 0x02

/**
 * struct gpioevent_data - The actual event being pushed to userspace
 * @timestamp: best estimate of time of event occurrence, in nanoseconds
 * @id: event identifier
 *
 * Note: This struct is part of ABI v1 and is deprecated.
 * Use &struct gpio_v2_line_event instead.
 */
struct gpioevent_data {
	__u64 timestamp;
	__u32 id;
};

/*
 * v1 and v2 ioctl()s
 */
#define GPIO_GET_CHIPINFO_IOCTL _IOR(0xB4, 0x01, struct gpiochip_info)
#define GPIO_GET_LINEINFO_UNWATCH_IOCTL _IOWR(0xB4, 0x0C, __u32)

/*
 * v2 ioctl()s
 */
#define GPIO_V2_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x05, struct gpio_v2_line_info)
#define GPIO_V2_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x06, struct gpio_v2_line_info)
#define GPIO_V2_GET_LINE_IOCTL _IOWR(0xB4, 0x07, struct gpio_v2_line_request)
#define GPIO_V2_LINE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0D, struct gpio_v2_line_config)
#define GPIO_V2_LINE_GET_VALUES_IOCTL _IOWR(0xB4, 0x0E, struct gpio_v2_line_values)
#define GPIO_V2_LINE_SET_VALUES_IOCTL _IOWR(0xB4, 0x0F, struct gpio_v2_line_values)

/*
 * v1 ioctl()s
 *
 * These ioctl()s are deprecated.  Use the v2 equivalent instead.
 */
#define GPIO_GET_LINEINFO_IOCTL _IOWR(0xB4, 0x02, struct gpioline_info)
#define GPIO_GET_LINEHANDLE_IOCTL _IOWR(0xB4, 0x03, struct gpiohandle_request)
#define GPIO_GET_LINEEVENT_IOCTL _IOWR(0xB4, 0x04, struct gpioevent_request)
#define GPIOHANDLE_GET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x08, struct gpiohandle_data)
#define GPIOHANDLE_SET_LINE_VALUES_IOCTL _IOWR(0xB4, 0x09, struct gpiohandle_data)
#define GPIOHANDLE_SET_CONFIG_IOCTL _IOWR(0xB4, 0x0A, struct gpiohandle_config)
#define GPIO_GET_LINEINFO_WATCH_IOCTL _IOWR(0xB4, 0x0B, struct gpioline_info)

#endif /* _GPIO_H_ */

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