# event_type
('type', u8),
('_pad', u8 * 3),
]
# Endpoint ioctls
# The same as in gadgetfs
# IN transfers may be reported to the gadget driver as complete
# when the fifo is loaded, before the host reads the data;
# OUT transfers may be reported to the host's "client" driver as
# complete when they're sitting in the FIFO unread.
# THIS returns how many bytes are "unclaimed" in the endpoint fifo
# (needed for precise fault handling, when the hardware allows it)
FIFO_STATUS = ioctl_opt.IO(ord('g'), 1)
# discards any unclaimed data in the fifo.
FIFO_FLUSH = ioctl_opt.IO(ord('g'), 2)
# resets endpoint halt+toggle; used to implement set_interface.
# some hardware (like pxa2xx) can't support this.
CLEAR_HALT = ioctl_opt.IO(ord('g'), 3)
# Specific for functionfs
# Returns reverse mapping of an interface. Called on EP0. If there
# is no such interface returns -EDOM. If function is not active
# returns -ENODEV.
INTERFACE_REVMAP = ioctl_opt.IO(ord('g'), 128)
# __be32 sb_logsunit; /* stripe unit size for the log */
# __be32 sb_features2; /* additional feature bits */
# /*
# * bad features2 field as a result of failing to pad the sb
# * structure to 64 bits. Some machines will be using this field
# * for features2 bits. Easiest just to mark it bad and not use
# * it for anything else.
# */
# __be32 sb_bad_features2;
#
# /* must be padded to 64 bit alignment */
#} xfs_dsb_t;
#
BLKGETSIZE64 = ioctl_opt.IOR(0x12, 114, ctypes.c_size_t)
BLKSSZGET = ioctl_opt.IO(0x12, 104)
XFS_SDB_T_STRUCT = struct.Struct(
">4sIQQQ16sQQQQIIIIIHHHH12sBBBBBBBBQQQQQQHBBIIIBBHIII"
) # Always big-endian per above struct
XFSSdbT = namedtuple("XFSSdbT", [
"sb_magicnum", "sb_blocksize", "sb_dblocks", "sb_rblocks", "sb_rextents",
"sb_uuid", "sb_logstart", "sb_rootino", "sb_rbmino", "sb_rsumino",
"sb_rextsize", "sb_agblocks", "sb_agcount", "sb_rbmblocks", "sb_logblocks",
"sb_versionnum", "sb_sectsize", "sb_inodesize", "sb_inopblock", "sb_fname",
"sb_blocklog", "sb_sectlog", "sb_inodelog", "sb_inopblog", "sb_agblklog",
"sb_rextslog", "sb_inprogress", "sb_imax_pct", "sb_icount", "sb_ifree",
"sb_fdblocks", "sb_frextents", "sb_uquotino", "sb_gquotino", "sb_qflags",
"sb_flags", "sb_shared_vn", "sb_inoalignmt", "sb_unit", "sb_width",
"sb_dirblklog", "sb_logsectlog", "sb_logsectsize", "sb_logsunit",
"sb_features2", "sb_bad_features2"
])