B_HID_USAGE_PAGE_CONSUMER
#define HID_CONSUMER(code) ((B_HID_USAGE_PAGE_CONSUMER << 16) | (B_HID_UID_CON_##code))
case B_HID_USAGE_PAGE_CONSUMER:
|| (item->UsagePage() == B_HID_USAGE_PAGE_CONSUMER
|| item->UsagePage() == B_HID_USAGE_PAGE_CONSUMER
fHorizontalPan = report.FindItem(B_HID_USAGE_PAGE_CONSUMER,
_AddNewSpec("/bin/setvolume -t", (B_HID_USAGE_PAGE_CONSUMER << 16) | B_HID_UID_CON_MUTE);
_AddNewSpec("/bin/setvolume -i", (B_HID_USAGE_PAGE_CONSUMER << 16) | B_HID_UID_CON_VOLUME_INCREMENT);
_AddNewSpec("/bin/setvolume -d", (B_HID_USAGE_PAGE_CONSUMER << 16) | B_HID_UID_CON_VOLUME_DECREMENT);