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2024/1/17 -The host obtains the device descriptor through a control transfer. In the transfer, the request type is GET DESCRIPTOR and the recipient is the ...

USB Descriptors. All USB devices have a hierarchy of descriptors which describe to the host information such as what the device is, who makes it, ...

2024/1/16 -This article describes how to get descriptors from the device at the endpoint, interface, configuration, and device level.

The host will now send a request to endpoint 0 of device address 0 to find out its maximum packet size. It can discover this by using the Get Descriptor (Device) ...

The Device Descriptor (USB_DEVICE_DESCRIPTOR) is the root of the descriptor tree and contains basic device information. The unique numbers, idVendor and ...

Set Descriptor/Get Descriptor is used to return the specified descriptor in wValue. A request for the configuration descriptor will return the device ...

2023/11/10 -The purpose of the device descriptor is to let the host know what specification of USB the device complies with and how many possible ...

USB devices report their attributes using descriptors, which are data structures with a defined format. Each descriptor begins with a byte-wide field ...

Get the USB configuration descriptor for the currently active configuration. ... Get a USB configuration descriptor based on its index. More... int ...

2023/5/1 -Interface descriptor is technical term that refers to a very specific piece of data. This data starts with the bytes 0x09 (length) and 0x04 ...