A high-speed capable device that has different device information for full-speed and high-speed must have a Device Qualifier Descriptor ...
2021/04/01 · The USB_DEVICE_QUALIFIER_DESCRIPTOR structure is used by USB client drivers to retrieve a USB-defined device qualifier descriptor. Syntax. C++
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What is a USB device descriptor?
What is the bos descriptor in USB?
2021/04/18 · Hi while implementing/testing MTP on Linux Wireshark captured setup requests asking for "Device Qualifier Descriptor" according to section ...
2017/01/06 · The handler for descriptor requests is in library code. It handles standard requests itself, but passes non-standard requests over to user code.
2023/03/03 · DEVICE_QUALIFIER. A high-speed capable device that has different ... DEVICE_QUALIFIER descriptor. This descriptor provides information about ...
IOUSBDeviceQualifierDescriptor. The structure for storing a USB device qualifier descriptor. DriverKit 19.0+. typedef struct IOUSBDeviceQualifierDescriptor ...
2023/11/20 · I am working on a USB 2.0 FS device implementation on STM32H5. Setup/Enumeration works but Linux (Rpi 3B+ raspian) requests device qualifier ...
2024/03/06 · The device_qualifier descriptor describes information about a high-speed capable device that would change if the device were operating at the ...
Field Documentation. uint16_t device_qualifier::usb_spec. Definition at line 57 of file usb.c. uint8_t device_qualifier::dev_class. Definition at line 58 of ...
Device Qualifier Descriptor describes the alternative information needed when the device operates in different speed modes. The USB Host sends setup requests as ...