enum IOCTL::IOC
Overview
Direction bits, which any architecture can choose to override before including this file.
Defined in:
asm-generic/ioctl.crEnum Members
-
NONE =
0_u32
-
WRITE =
1_u32
-
_IOC::WRITE means userland is writing and kernel is reading.
-
READ =
2_u32
-
IOC::READ means userland is reading and kernel is writing.