dbgp_bulk_write   741 arch/x86/kernel/early_printk.c 	ret = dbgp_bulk_write(USB_DEBUG_DEVNUM, dbgp_endpoint_out, " ", 1);
dbgp_bulk_write   863 arch/x86/kernel/early_printk.c 		ret = dbgp_bulk_write(USB_DEBUG_DEVNUM,