Struct ble_gatt_chr_def

#[repr(C)]
pub struct ble_gatt_chr_def {
    pub uuid: *const ble_uuid_t,
    pub access_cb: ble_gatt_access_fn,
    pub arg: *mut c_void,
    pub descriptors: *mut ble_gatt_dsc_def,
    pub flags: ble_gatt_chr_flags,
    pub min_key_size: u8,
    pub val_handle: *mut u16,
}

Fields

uuid: *const ble_uuid_t

Pointer to characteristic UUID; use BLE_UUIDxx_DECLARE macros to declare proper UUID; NULL if there are no more characteristics in the service.

access_cb: ble_gatt_access_fn

Callback that gets executed when this characteristic is read or written.

arg: *mut c_void

Optional argument for callback.

descriptors: *mut ble_gatt_dsc_def

Array of this characteristic’s descriptors. NULL if no descriptors. Do not include CCCD; it gets added automatically if this characteristic’s notify or indicate flag is set.

flags: ble_gatt_chr_flags

Specifies the set of permitted operations for this characteristic.

min_key_size: u8

Specifies minimum required key size to access this characteristic.

val_handle: *mut u16

At registration time, this is filled in with the characteristic’s value attribute handle.

Trait Implementations

impl Clone for ble_gatt_chr_def

fn clone(&self) -> ble_gatt_chr_def

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ble_gatt_chr_def

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

Formats the value using the given formatter.

impl Default for ble_gatt_chr_def

fn default() -> Self

Returns the “default value” for a type.

impl Copy for ble_gatt_chr_def

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes