The Linux-USB Host Side API | ||
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the vendor id of the device to find
the product id of the device to find
Returns a pointer to a struct usb_device if such a specified usb device is present in the system currently. The usage count of the device will be incremented if a device is found. Make sure to call usb_put_dev when the caller is finished with the device.
If a device with the specified vendor and product id is not found, NULL is returned.
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usb_put_dev | Up | usb_get_current_frame_number |