Enum Evidence 

pub enum Evidence {
    SysfsPath(String),
    DeviceTreeCompatible(String),
    Ioctl {
        node: String,
        call: String,
    },
    TrialInit {
        node: String,
        ms: u32,
    },
    ProcCpuinfo {
        midr: u32,
    },
}

What concretely proved a Probed::Present answer.

Evidence is ordered weakest-to-strongest: a sysfs path or a device-tree compatible string is a declaration the kernel exposes, an ioctl readback confirms the kernel driver answered, and a Evidence::TrialInit is the strongest — the device accepted a real (bounded) initialization.

Variants

SysfsPath(String)

A node was found at this sysfs path.

DeviceTreeCompatible(String)

/proc/device-tree/compatible (or an of_node) carried this string.

Ioctl

An ioctl on node (e.g. VIDIOC_QUERYCAP) answered successfully.

Fields

node: String

call: String

TrialInit

The device accepted a bounded trial init on node, completing in ms.

Fields

node: String

ms: u32

ProcCpuinfo

A core cluster’s MIDR (main ID register) read from /proc/cpuinfo.

Fields

midr: u32

Trait Implementations

impl Clone for Evidence

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Evidence

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Evidence

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Evidence

impl PartialEq for Evidence

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Evidence

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Evidence