On Time RTOS-32 Documentation

Welcome

RTTarget-32

RTUSB-32 Programming Manual

RTUSB-32 Reference Manual

Introduction

Initialization

Device Query

Function RTUGetDevice

Function RTUDeviceSpeed

Function RTUGetConfiguration

Function RTUAltInterfaces

Function RTUGetInterface

Function RTUFindInterface

Function RTUGetEndpoint

Function RTUEndpointDirection

Function RTUEndpointType

Function RTUEndpointPacketSize

Function RTUEndpointInterval

Function RTUFindEndpoint

Function RTUGetString

Function RTUEnumDescriptors

Function RTUGetDescriptor

Function RTUEnumDevices

Function RTUParentDevice

Function RTUSuspendHubs

Function RTUGetFrameNumber

Device Configuration

Pipe I/O

Message Queues

Keyboard Class Driver

Mouse Class Driver

Touch Screen Driver

Printer Class Driver

Mass Storage Class Driver

AX772 USB-Ethernet Driver

AX172 USB-Ethernet Driver

CDC ECM USB-Ethernet Driver

Audio Class Driver

Media Transfer Protocol Class Driver

RTUSB-32 Error Codes and Diagnostics

Function RTUGetFrameNumber

RTUGetFrameNumber reads the current frame number from the USB bus the specified device is connected on:

int RTUGetFrameNumber(RTUDeviceHandle Device);

Parameters

Device

Device handle of a device on the USB bus to query.

return value

The current frame number for Low- and Full-Speed devices or the current microframe number for High-, SuperSpeed, and SuperSpeedPlus devices. On error, a negative error code is returned.

Left Device Query

Function RTUSuspendHubs