Struct omnisensor::i2c::I2CDeviceParams

pub struct I2CDeviceParams {
    pub bus: u16,
    pub address: u16,
    pub devtype: I2CDeviceType,
}

The information needed to instantiate an I2C device.

Fields

bus: u16

I2C bus number.

address: u16

I2C address.

devtype: I2CDeviceType

Device type.

Implementations

impl I2CDeviceParams

pub fn from_dbus(
    cfg: &PropMap,
    devtype: I2CDeviceType
) -> Result<Self, Box<dyn Error>>

Create an I2CDeviceParams from a set of dbus properties and a type string.

pub fn sysfs_name(&self) -> String

Return the device name as employed in sysfs, e.g. "2-004c".

pub fn sysfs_device_dir(&self) -> PathBuf

Return the absolute path of the sysfs directory representing the device.

pub fn sysfs_bus_dir(&self) -> PathBuf

Return the absolute path of the sysfs directory representing the bus via which the device is attached.

pub fn device_present(&self) -> bool

Test if the device is currently present, i.e. has had a driver successfully bound to it.

pub fn device_static(&self) -> bool

Test if the device is static, i.e. instantiated from a device-tree node (as opposed to a dynamic device instantiate by userspace writing to new_device).

pub fn instantiate_device(
    &self
) -> Result<Option<Arc<I2CDevice>>, Box<dyn Error>>

Attempt to instantiate the device represented by self, returning:

• Ok(None) if the device is static (we don’t need to manage it).
• Ok(Some(_)) on success (an I2CDevice that will remove the device when the last reference to it is dropped).
• Err(_) on error.

Trait Implementations

impl Clone for I2CDeviceParams

fn clone(&self) -> I2CDeviceParams

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for I2CDeviceParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for I2CDeviceParams

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,

Feeds a slice of this type into the given Hasher.

impl PartialEq<I2CDeviceParams> for I2CDeviceParams

fn eq(&self, other: &I2CDeviceParams) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for I2CDeviceParams

impl StructuralEq for I2CDeviceParams

impl StructuralPartialEq for I2CDeviceParams