libusb Developers Guide
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# usb_find_devices

## Name

usb_find_devices -- Find all devices on all USB devices

## Description

``int usb_find_devices`(void);`

`usb_find_devices` will find all of the devices on each bus. This should be called after usb_find_busses. Returns the number of changes since the previous call to this function (total of new device and devices removed).

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usb_find_busses | Up | usb_get_busses