Struct v4l::device::Handle

pub struct Handle {
    fd: c_int,
}

Device handle for low-level access.

Acquiring a handle facilitates (possibly mutating) interactions with the device.

Fields

fd: c_int

Implementations

impl Handle

fn new(fd: c_int) -> Self

pub fn fd(&self) -> c_int

Returns the raw file descriptor

pub fn poll(&self, events: i16, timeout: i32) -> Result<i32>

Polls the file descriptor for I/O events

Arguments

• events - The events you are interested in (e.g. POLLIN)

• timeout - Timeout in milliseconds A value of zero returns immedately, even if the fd is not ready. A negative value means infinite timeout (blocking).

Trait Implementations

impl Drop for Handle

fn drop(&mut self)

Executes the destructor for this type.