Struct mio_udev::Event [−][src]
pub struct Event { /* fields omitted */ }An event that indicates a change in device state.
Methods
impl Event[src]
impl Eventpub fn event_type(&self) -> EventType[src]
pub fn event_type(&self) -> EventTypeReturns the EventType corresponding to this event.
pub fn sequence_number(&self) -> u64[src]
pub fn sequence_number(&self) -> u64Returns the event's sequence number.
pub fn device(&self) -> Device[src]
pub fn device(&self) -> DeviceReturns the device associated with this event.
Methods from Deref<Target = Device>
pub fn is_initialized(&self) -> bool[src]
pub fn is_initialized(&self) -> boolChecks whether the device has already been handled by udev.
When a new device is connected to the system, udev initializes the device by setting
permissions, renaming network devices, and possibly other initialization routines. This
method returns true if udev has performed all of its work to initialize this device.
This method only applies to devices with device nodes or network interfaces. All other
devices return true by default.
pub fn devnum(&self) -> Option<u64>[src]
pub fn devnum(&self) -> Option<u64>Gets the device's major/minor number.
pub fn syspath(&self) -> &Path[src]
pub fn syspath(&self) -> &PathReturns the syspath of the device.
The path is an absolute path and includes the sys mount point. For example, the syspath for
tty0 could be /sys/devices/virtual/tty/tty0, which includes the sys mount point,
/sys.
pub fn devpath(&self) -> &OsStr[src]
pub fn devpath(&self) -> &OsStrReturns the kernel devpath value of the device.
The path does not contain the sys mount point, but does start with a /. For example, the
devpath for tty0 could be /devices/virtual/tty/tty0.
pub fn devnode(&self) -> Option<&Path>[src]
pub fn devnode(&self) -> Option<&Path>Returns the path to the device node belonging to the device.
The path is an absolute path and starts with the device directory. For example, the device
node for tty0 could be /dev/tty0.
pub fn parent(&self) -> Option<Device>[src]
pub fn parent(&self) -> Option<Device>Returns the parent of the device.
pub fn parent_with_subsystem(
&self,
subsystem: &Path
) -> Result<Option<Device>, Error>[src]
pub fn parent_with_subsystem(
&self,
subsystem: &Path
) -> Result<Option<Device>, Error>Returns the parent of the device with the matching subsystem and devtype if any.
pub fn parent_with_subsystem_devtype(
&self,
subsystem: &Path,
devtype: &Path
) -> Result<Option<Device>, Error>[src]
pub fn parent_with_subsystem_devtype(
&self,
subsystem: &Path,
devtype: &Path
) -> Result<Option<Device>, Error>Returns the parent of the device with the matching subsystem and devtype if any.
pub fn subsystem(&self) -> Option<&OsStr>[src]
pub fn subsystem(&self) -> Option<&OsStr>Returns the subsystem name of the device.
The subsystem name is a string that indicates which kernel subsystem the device belongs to.
Examples of subsystem names are tty, vtconsole, block, scsi, and net.
pub fn sysname(&self) -> &OsStr[src]
pub fn sysname(&self) -> &OsStrReturns the kernel device name for the device.
The sysname is a string that differentiates the device from others in the same subsystem.
For example, tty0 is the sysname for a TTY device that differentiates it from others,
such as tty1.
pub fn sysnum(&self) -> Option<usize>[src]
pub fn sysnum(&self) -> Option<usize>Returns the instance number of the device.
The instance number is used to differentiate many devices of the same type. For example,
/dev/tty0 and /dev/tty1 are both TTY devices but have instance numbers of 0 and 1,
respectively.
Some devices don't have instance numbers, such as /dev/console, in which case the method
returns None.
pub fn devtype(&self) -> Option<&OsStr>[src]
pub fn devtype(&self) -> Option<&OsStr>Returns the devtype name of the device.
pub fn driver(&self) -> Option<&OsStr>[src]
pub fn driver(&self) -> Option<&OsStr>Returns the name of the kernel driver attached to the device.
pub fn property_value<T>(&self, property: T) -> Option<&OsStr> where
T: AsRef<OsStr>, [src]
pub fn property_value<T>(&self, property: T) -> Option<&OsStr> where
T: AsRef<OsStr>, Retreives the value of a device property.
pub fn attribute_value<T>(&self, attribute: T) -> Option<&OsStr> where
T: AsRef<OsStr>, [src]
pub fn attribute_value<T>(&self, attribute: T) -> Option<&OsStr> where
T: AsRef<OsStr>, Retreives the value of a device attribute.
ⓘImportant traits for Properties<'a>pub fn properties(&'a self) -> Properties<'a>[src]
pub fn properties(&'a self) -> Properties<'a>Returns an iterator over the device's properties.
Example
This example prints out all of a device's properties:
for property in device.properties() { println!("{:?} = {:?}", property.name(), property.value()); }
ⓘImportant traits for Attributes<'a>pub fn attributes(&'a self) -> Attributes<'a>[src]
pub fn attributes(&'a self) -> Attributes<'a>Returns an iterator over the device's attributes.
Example
This example prints out all of a device's attributes:
for attribute in device.attributes() { println!("{:?} = {:?}", attribute.name(), attribute.value()); }