Unix code to list USB devices (lsusb equilent)

unix-lsusb.c

/*
* Compile with -lusb
*/
#include <stdio.h>
#include <usb.h>
main(){
    struct usb_bus *bus;
    struct usb_device *dev;
    usb_init();
    usb_find_busses();
    usb_find_devices();
    for (bus = usb_busses; bus; bus = bus->next)
        for (dev = bus->devices; dev; dev = dev->next){
            printf("Trying device %s/%s\n", bus->dirname, dev->filename);
            printf("\tID_VENDOR = 0x%04x\n", dev->descriptor.idVendor);
            printf("\tID_PRODUCT = 0x%04x\n", dev->descriptor.idProduct);
        }
}