libusb Developers Guide
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# usb_get_string

## Name

usb_get_string -- Retrieves a string descriptor from a device

## Description

``int usb_get_string`(usb_dev_handle *dev, int index, int langid, char *buf, size_t buflen);`

`usb_get_string` retrieves the string descriptor specified by index and langid from a device. The string will be returned in Unicode as specified by the USB specification. Returns the number of bytes returned in `buf` or < 0 on error.

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