Crate usb_util

USB device access and descriptor manipulation.

Modules

• descriptor 🔒
• device 🔒
• error 🔒
• types 🔒

Structs

• ConfigDescriptor
  Standard USB configuration descriptor as defined in USB 2.0 chapter 9, not including the standard header.
• ConfigDescriptorTree
• DescriptorHeader
  Standard USB descriptor header common to all descriptor types.
• Device
  Device represents a USB device.
• DeviceDescriptor
  Standard USB device descriptor as defined in USB 2.0 chapter 9, not including the standard header.
• DeviceDescriptorTree
• DmaBuffer
  DmaBuffer represents a DMA buffer lent by a device
• EndpointDescriptor
  Standard USB endpoint descriptor as defined in USB 2.0 chapter 9, not including the standard header.
• InterfaceDescriptor
  Standard USB interface descriptor as defined in USB 2.0 chapter 9, not including the standard header.
• InterfaceDescriptorTree
• Transfer
  Transfer contains the information necessary to submit a USB request and, once it has been submitted and completed, contains the response.
• TransferHandle
  TransferHandle is a handle that allows cancellation of in-flight transfers between submit_transfer() and get_completed_transfer(). Attempting to cancel a transfer that has already completed is safe and will return an error.
• UsbRequestSetup
  RequestSetup is first part of control transfer buffer.

Enums

• ControlRequestDataPhaseTransferDirection
• ControlRequestRecipient
  Recipient type of control request.
• ControlRequestType
  Request types.
• DescriptorType
  Standard USB descriptor types.
• DeviceSpeed
  USB device speed
• EndpointDirection
  Endpoint Directions.
• EndpointType
  Endpoint types.
• Error
• StandardControlRequest
  Standard request defined in usb spec.
• TransferBuffer
  TransferBuffer is used for data transfer between crosvm and the host kernel
• TransferStatus

Constants

• ENDPOINT_DIRECTION_OFFSET
  Endpoint direction offset.

Functions

• control_request_type
  Construct a bmRequestType value for a control request.
• parse_usbfs_descriptors
  Given data containing a full set of descriptors as provided by the Linux kernel usbdevfs descriptors file, parse the descriptors into a tree data structure.

Type Aliases

• Result