Symbol: pidff_find_usage
drivers/hid/usbhid/hid-pidff.c
1046
int index = pidff_find_usage(fld, usage_code);
drivers/hid/usbhid/hid-pidff.c
1211
keys[i] = pidff_find_usage(fld, usage_page | usagetable[i]) + 1;