USB_AC_FIND_ALL
0, USB_AC_FIND_ALL, &count, 0, &depth, usb_ac_update_port);
(all_or_one == USB_AC_FIND_ALL))) {
USB_AC_FIND_ALL, &count, left, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, right, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, left, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, right, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, gain, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, gain,
USB_AC_FIND_ALL, &count, gain, usb_ac_set_gain);
USB_AC_FIND_ALL, &count, muteval,