macro_rules! request_code_readwrite { ($ty:expr, $nr:expr, $sz:expr) => { ... }; }
Expand description
Generate an ioctl request code for a command that reads and writes.
This is equivalent to the _IOWR()
macro exposed by the C ioctl API.
You should only use this macro directly if the ioctl
you’re working
with is “bad” and you cannot use ioctl_readwrite!()
directly.