| UYAP(4) | Device Drivers Manual | UYAP(4) | 
uyap —
uyap* at uhub?
uyap driver downloads firmware into a YAP phone. The
  device will then disconnect and reappear as a composite device with two audio
  pipes (handled by uaudio(4)) and
  a HID device (handled by uhid(4)).
uyap driver appeared in NetBSD
  1.6.
| January 2, 2001 | NetBSD 9.4 |