Monday, July 6, 2009

USB Testing: How Compliance Checklists Fit In


The compliance testing process for most devices is rigorous and detailed. Standards organizations and technology designers, with the help of independent test labs, work together to put together tests that can accurately confirm that the device meets the necessary guidelines that will ensure the product can perform soundly out in the ‘real world.’
But not all compliance measurements can be tested easily. That’s where compliance checklists come into play.
Take
USB compliance for instance.The USB-IF provides compliance checklists to developers for two major reasons:
1. As a checklist during the design phase to help designers make sure their products are designed to be compliant2. As a self-disclosure statement of the different areas of product compliance to review prior to USB testing. By checking “Yes” for an item, you indicate that your product design strived for and in your estimate, met that requirement.
USB checklists include:
USB Peripheral Checklist: to be used by vendors building end-user USB peripherals
USB System Checklist: to be used by vendors building end-user systems with USB ports (i.e. motherboards and add-in cards).
USB Peripheral Silicon Checklist: to be used by vendors providing USB building-block silicon (controllers, interfaces, etc.)
USB HUB Checklist: to be used by vendors building standalone hubs or compound devices including a hub
USB HUB Silicon Checklist: to be used by vendors providing USB building-block silicon for HUBs (compound devices too)
USB OTG Compliance Checklist
Wireless USB Device Checklist
Wireless USB DWA Checklist
Wireless USB HWA Checklist
Wireless USB WHCI Checklist
For USB compliance, fill out a soft copy of the applicable checklist and submit a soft copy when registering your product online for USB testing. Note that compound devices should submit both Peripheral and HUB Checklists. For more information on the USB-IF compliance program, visit: http://www.usb.org/developers/compliance

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