- A USB descriptor is a data structure that provides information about a USB device. Here are some key points about USB descriptors:
- The device descriptor represents the entire device and specifies basic information such as supported USB version, maximum packet size, vendor and product IDs, and number of configurations1234.
- The device descriptor is the first descriptor read during enumeration2.
- USB devices use descriptors to report their attributes5.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The device descriptor of a USB device represents the entire device. As a result a USB device can only have one device descriptor. It specifies some basic, yet important information about the device such as the supported USB version, maximum packet size, vendor and product IDs and the number of possible configurations the device can have.beyondlogic.org/usbnutshell/usb5.shtmlThe device descriptor is the first descriptor read by the host during enumeration. The purpose of the device descriptor is to let the host know what specification of USB the device complies with and how many possible configurations are available on the device.developerhelp.microchip.com/xwiki/bin/view/applic…A Descriptor contains information like type of the device, Vendor ID, Compliant USB Version, number of configurations device supports, number of endpoints, etc. The USB peripheral must respond with descriptors when requested by the host. During enumeration, the host uses control transfer to request the device for descriptors.www.engineersgarage.com/usb-descriptors-and-th…Each USB device can only have a single Device Descriptor. This descriptor contains information that applies globally to the device, such as serial number, vendor ID, product ID, etc. The device descriptor also has information about the device class. The host PC can use this information to help determine what driver to load for the device.www.totalphase.com/blog/2020/08/what-is-enumer…USB devices report their attributes using descriptors, which are data structures with a defined format. Each descriptor begins with a byte-wide field containing the total number of bytes in the descriptor followed by a byte-wide field identifying the descriptor type.www.keil.com/pack/doc/mw/USB/html/_u_s_b__de… USB in a NutShell - Chapter 5 - USB Descriptors
WEBApr 12, 2018 · Learn how USB devices use descriptors to communicate information to the host, such as device type, configuration, interface, endpoint and string. See the format and fields of each descriptor type and examples.
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WEBReference. USB Descriptors. USB devices report their attributes using descriptors, which are data structures with a defined format. Each descriptor begins with a byte-wide field containing the total number of bytes in the descriptor followed by a byte-wide field identifying the descriptor …
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WEBThe USB peripheral must respond with descriptors when requested by the host. During enumeration, the host uses control transfer to request the device for descriptors. Descriptor Types. There are mainly five types of descriptors. • Device Descriptors. • Configuration Descriptors. • Interface …
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