Enum uefi::table::boot::OpenProtocolAttributes

#[repr(u32)]
pub enum OpenProtocolAttributes {
    GetProtocol = 2,
    ByChildController = 8,
    ByDriver = 16,
    ByDriverExclusive = 48,
    Exclusive = 32,
}

Attributes for BootServices::open_protocol.

Variants

GetProtocol = 2

Used by drivers to get a protocol interface for a handle. The driver will not be informed if the interface is uninstalled or reinstalled.

ByChildController = 8

Used by bus drivers to show that a protocol is being used by one of the child controllers of the bus.

ByDriver = 16

Used by a driver to gain access to a protocol interface. When this mode is used, the driver’s Stop function will be called if the protocol interface is reinstalled or uninstalled. Once a protocol interface is opened with this attribute, no other drivers will be allowed to open the same protocol interface with the ByDriver attribute.

ByDriverExclusive = 48

Used by a driver to gain exclusive access to a protocol interface. If any other drivers have the protocol interface opened with an attribute of ByDriver, then an attempt will be made to remove them with DisconnectController.

Exclusive = 32

Used by applications to gain exclusive access to a protocol interface. If any drivers have the protocol opened with an attribute of ByDriver, then an attempt will be made to remove them by calling the driver’s Stop function.

Trait Implementations

impl Debug for OpenProtocolAttributes

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

Formats the value using the given formatter.