Function IOUSBGetUSB20ExtensionDeviceCapabilityDescriptor 

pub unsafe extern "C-unwind" fn IOUSBGetUSB20ExtensionDeviceCapabilityDescriptor(
    bos_descriptor: *const IOUSBBOSDescriptor,
) -> *const IOUSBDeviceCapabilityUSB2Extension

Available on crate features AppleUSBDescriptorParsing and objc2-io-kit only.

Find the first USB20ExtensionCapabilityDescriptor in a BOS descriptor

This method uses getNextCapabilityDescriptorWithType to fetch the first USB20ExtensionCapabilityDescriptor

Parameter bosDescriptor: BOS descriptor that contains the descriptors to iterate through

Returns: USB20ExtensionCapabilityDescriptor pointer, or NULL if no matching descriptor can be found

Safety

bos_descriptor must be a valid pointer.