USB Audio Class Driver

USB Audio Class Driver

» A part of USBware: Embedded USB Software solution
Jungo's USB Audio Class Driver provides a full and comprehensive solution for manufacturers of audio systems such as mobile phones, mobile phone sets and car kits, car infotainment systems, set-top boxes, home entertainment systems, iPod accessories, digital speakers and others, to support audio streaming over the Universal Serial Bus from respective devices such as mobile phones, portable music players including the Apple iPod, digital microphones, digital speakers and others...

The USB Audio Class Driver is a part of the Jungo USBware framework and is fully compliant with the USB-IF Audio Class Specification. It enables an embedded system to recognize an audio device and provide real time streaming audio. Using the Audio Class Driver, users can communicate with their USB audio device, streaming audio to or from the USB device.


Background
The Universal Serial Bus (USB) provides an expandable, hot-pluggable Plug and Play serial interface that ensures a standard, low-cost connection for peripheral devices such as storage devices, keyboards, joysticks, printers, scanners, modems, and digital cameras.

A USB Class Driver is a Logical Device Driver (LDD), which controls USB devices that provide common functionality and are implemented in compliance with a specific device class.

A USB Function Driver is a driver implemented within a device in order to handle the device-specific functionality of a standard or custom USB device function. This driver provides the counterpart of the USB Class Driver.

Jungo's USB Audio Class Driver is part of the Jungo USBware USB Host Stack, which enables software and device manufacturers to incorporate standard USB connectivity into their embedded devices.

The USBware Audio Class Driver streams the audio data through a dedicated isochronous pipe, thus utilizing the full potential of the USB bandwidth while guaranteeing required throughput and minimizing protocol overhead.



Specification
  • Products description: USB Audio Class Solution
  • Streaming audio
  • Support for the Audio 1.0 USB Specification
  • Operating systems:
    • Supported embedded operating systems: Linux, Android, Symbian, Windows Phone, Windows Mobile, uC/OS-II, VelOSity/Integrity, pSOS, ThreadX, eCos/eCosPro, QNX, MQX, Nucleus, OS20/OS21, uITRON, embOS, VDK, REX, INtime, MeOS, DSP/BIOS, MS-DOS, PowerTV, XP, Vista & more
    • 16/32bit Proprietary OS/no-OS/pre-boot environments
    • Modular Architecture: OS wrappers for easy porting to any operating system
  • USB host controllers:
    • Industry standard OHCI, UHCI, EHCI, and xHCI
    • Leading USB host controller & IP Core vendors including: NXP (ISP 116x, 1362, 1562, 176x), Chipidea/TDI/ARC (CI13010, CI13610, VUSBHS, TD243, TD242LP), Mentor (MUSBMHDRC), Synopsys (DWC USB 2.0 HS High Speed, EHCI/OHCI), Cypress and Epson
    • Leading microprocessors with native USB support: NXP LPC (2458, 246x), TI OMAP (850,1030, 2430), TI DaVinCi, Atmel (RM9200, SAM926x), Samsung (S3C2412, S3C2413), ADI Blackfin (54x, 52x), Renesas (SH7770, SH7727), Freescale (ARM i.MX31/i.MX27, Coldfire MCF52211, PowerQUICC II), Cypress & more
    • Professional services to support proprietary controllers
  • USB Device controllers:
    • Leading USB device controller & IP Core vendors including: NXP (ISP 118x, 1582), Chipidea/TDI/ARC (CI13010, CI13610, VUSBHS, TD243, TD242LP), Mentor (MUSBMHDRC), Synopsys (DWC USB 2.0 UDC20) , Cypress and Epson
    • Leading Microprocessors with native USB support: NXP LPC (236x, 2378, 2387), TI OMAP (850,1030,2430), TI DaVinCi, Atmel (ATSAM7x, RM9200, SAM926x), Samsung (S3C2412, S3C2413), ADI Blackfin (54x, 52x), Freescale (ARM i.MX31/i.MX27, Coldfire MCF52211, PowerQUICC II), ST (STR91xF, STR91xFA) & more
    • Professional services to support proprietary controllers
  • CPU architectures: ARM, MIPS, x86, RISC, PowerPC, Freescale Coldfire, Intel Xscale, TI DSPs and OMAP, Renesas SuperH and others
  • USB 1.1 and USB 2.0 transfer rates:
    High-speed (480 Mb/s), full-speed (12 Mb/s) and low-speed (1.5 Mb/s), SuperSpeed (5 Gb/s)
  • Control, Bulk, Interrupt and Isochronous data transfer support
  • Programming language: ANSI C
  • Compilers: Any 32-bit C compiler


What's Next?
Request further information
Target Devices
Architecture
Benefits
  • High quality USB Audio Solution
  • Isochronous transfer which utilizes the full bandwidth of the USB
  • Fully compliant with USB-IF Audio Class Specifications
  • Support for composite USB devices, enabling several USB functions on the same embedded device (e.g. Audio + HID + Mass Storage etc).
  • Support for the Apple iPod
  • Small footprint
  • Turnkey solution: eliminates substantial development time and costs
  • Hardware/software-independent solution
  • Intuitive API, in C code
  • Source code available
  • Easy portability of applications that utilize the driver between supported operating systems
  • Extensive documentation
  • Comprehensive technical support, provided by the engineers who developed the stack
  • Part of a comprehensive embedded USB software solution from Jungo, which includes USB Host, USB Device and USB On-The-Go (OTG) stacks
Class Drivers for PCs and Windows CE hosts? Jungo Connectivity also offers class drivers for PCs and Windows CE hosts. To learn more, check out the DriverCore product page.