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How to reliably determine which USB device under /sys/device corresponds to the plug at the front of the computer

Here my problem: most of Qnap's NAS feature a "copy" button on the front, next to a USB-A port. That button will copy the content of any hard-drive plugged to the USB port next to it. I ...
Augier's user avatar
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Changes in usb_deregister_device_driver() are not reflected

I changed the code in kernel-source/drivers/usb/core/driver.c to: void usb_deregister_device_driver(struct usb_device_driver *udriver) { pr_info("%s: deregistering device driver %s\n", ...
Henry Leong's user avatar
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How to setup USB Serial Device over dart/flutter?

I have an RFID Reader from a company called Metratec. I actually enjoy this reader very much and there is a detailed PDF and prewritten packages for Java, Python and .NET. Now I want to write my own ...
Willi M's user avatar
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Does Android reuse device IDs for UsbDevice objects?

In the Android API reference, UsbDevice objects have a function, getDeviceId(), that returns a unique integer ID. The API reference notes that IDs are not persistent across disconnects. However, the ...
SoItBegins's user avatar
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Issue with USB CCID Communication on STM32F4

Hi StackOverflow Community, I am encountering an issue while implementing USB CCID functionality on an STM32F4 MCU. I recently integrated the CCID driver from the following repository into my project: ...
Ayoub Oubrahim's user avatar