UsbReadOptions UsbReadOptions UsbReadOptions UsbReadOptions UsbReadOptions Enum

Definition

Defines constants for configuration flags that can be set for a USB pipe that the host opens for a USB bulk IN endpoint.

This enumeration has a System.FlagsAttribute attribute that allows a bitwise combination of its member values.

public : enum class UsbReadOptions
enum class winrt::Windows::Devices::Usb::UsbReadOptions : uint32_t
public enum UsbReadOptions
Public Enum UsbReadOptions
var value = Windows.Devices.Usb.UsbReadOptions.allowPartialReads;
Attributes
System.FlagsAttribute ContractVersionAttribute

Windows 10 requirements

Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)

Fields

AllowPartialReads AllowPartialReads AllowPartialReads AllowPartialReads AllowPartialReads 8

Allows read requests from a device that returns more data than requested by the caller.

AutoClearStall AutoClearStall AutoClearStall AutoClearStall AutoClearStall 1

Automatically clears a stalled pipe without stopping the data flow.

IgnoreShortPacket IgnoreShortPacket IgnoreShortPacket IgnoreShortPacket IgnoreShortPacket 4

The host does not complete a read request when a short packet is received. The read request is completed only when an error occurs, the request is canceled, or all requested bytes have been read.

None None None None None 0

Clear all flags.

OverrideAutomaticBufferManagement OverrideAutomaticBufferManagement OverrideAutomaticBufferManagement OverrideAutomaticBufferManagement OverrideAutomaticBufferManagement 2

Bypasses queuing and error handling to boost performance for multiple read requests. Read operations must be done in multiples of MaxPacketSize.