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ModuleParamAccess

kernel::module_param

Struct ModuleParamAccess 

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pub struct ModuleParamAccess<T> { /* private fields */ }
Expand description

A wrapper for kernel parameters.

This type is instantiated by the module! macro when module parameters are defined. You should never need to instantiate this type directly.

Note: This type is pub because it is used by module crates to access parameter values.

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impl<T> ModuleParamAccess<T>

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pub fn value(&self) -> T
where T: Copy,

Get a copy of the parameter value.

Returns the value supplied at module load time, or the default value if the parameter has not been set.

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pub fn value_ref(&self) -> &T

Get a shared reference to the parameter value.

Returns a reference to the value supplied at module load time, or a reference to the default value if the parameter has not been set.

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pub const fn as_void_ptr(&self) -> *mut c_void

Get a mutable pointer to self.

NOTE: In most cases it is not safe deref the returned pointer.

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impl<T> !Freeze for ModuleParamAccess<T>

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impl<T> !RefUnwindSafe for ModuleParamAccess<T>

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impl<T> Send for ModuleParamAccess<T>
where T: Send,

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impl<T> Unpin for ModuleParamAccess<T>
where T: Unpin,

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impl<T> UnsafeUnpin for ModuleParamAccess<T>
where T: UnsafeUnpin,

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impl<T> UnwindSafe for ModuleParamAccess<T>
where T: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Init<T> for T

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unsafe fn __init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn chain<F>(self, f: F) -> ChainInit<Self, F, T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> KnownSize for T

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const MIN_SIZE: usize = const MIN_SIZE: usize = size_of::<T>();

Minimum size of this type known at compile-time.
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const MIN_ALIGN: Alignment = const MIN_ALIGN: Alignment = Alignment::of::<T>();

Minimum alignment of this type known at compile-time.
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fn size(_: *const T) -> usize

Get the size of an object of this type in bytes, with the metadata of the given pointer.
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impl<T> PinInit<T> for T

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unsafe fn __pinned_init(self, slot: *mut T) -> Result<(), Infallible>

Initializes slot. Read more
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fn pin_chain<F>(self, f: F) -> ChainPinInit<Self, F, T, E>
where F: FnOnce(Pin<&mut T>) -> Result<(), E>,

First initializes the value using self then calls the function f with the initialized value. Read more
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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T, U, const N: u32> TryIntoBounded<T, N> for U
where T: Integer, U: TryInto<T>,

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fn try_into_bounded(self) -> Option<Bounded<T, N>>

Attempts to convert self into a Bounded using N bits. Read more