18 Questions
What are some driver options for USB devices that support Control Transfers?
LibUSB, CYUSB, WinUSB
Which driver does not support Bulk Transfers for USB devices?
HID
What driver type is WinUSB and what is an advantage of using it?
Vendor-specific driver; Does not need WHQL testing for driver signing
Which driver project is open source and supports Windows, Mac, and Linux operating systems?
LibUSB
What type of devices use WinUSB, CYUSB, or LibUSB drivers?
Vendor-specific devices
Why is WinUSB advantageous in terms of driver signing?
It is Windows' own vendor-specific driver and does not need WHQL testing
What is the recommended action when a USB device is not recognized in Device Manager?
Check if the device is not exceeding the hub power requirements.
How can you uninstall a USB device from Device Manager?
Right-click on the device and select 'Uninstall'.
What should you do if the required power of a USB device exceeds the available power in the hub?
Ensure that the required power does not exceed the available power.
What is the final troubleshooting step suggested if changing the USB port and cable does not solve the problem?
Use software tools like CY SuiteUSB/EZUSB for debugging.
How can you force a driver update for a USB device?
Right-click on the device and select 'Update Driver Software'.
What can happen if a USB device is removed while Windows is installing hardware?
This can lead to driver installation and configuration issues.
How does a Windows PC locate a driver to manage communication between itself and a connected device?
By using .inf files to match the devices Product ID and Vendor ID.
What does the host PC do after receiving all descriptors for a device?
Sets a specific device configuration using the SET_CONFIGURATION request.
What is the state of the device after the host sets a specific device configuration?
The device is now in the configured state, ready for use in an application.
What does Windows do if it cannot find a driver match based on Product ID and Vendor ID?
It looks for a match based on class, subclass, and protocol retrieved from the device.
How can a device request additional descriptors specific to its class?
The host may request additional descriptors specific to the device class.
What can a user or driver do for devices that support multiple configurations?
Select the proper configuration for the device.
Learn how to troubleshoot USB device installation issues in Windows when the device is not recognized by the system. This includes steps such as uninstalling the device, updating driver software, and checking power requirements.
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