159 	struct mutex		io_lock;	// IO -lock  member
483 	mutex_lock(&mdc800->io_lock);  in mdc800_usb_probe()
488 		mutex_unlock(&mdc800->io_lock);  in mdc800_usb_probe()
529 	mutex_unlock(&mdc800->io_lock);  in mdc800_usb_probe()
553 		mutex_lock(&mdc800->io_lock);  in mdc800_usb_disconnect()
559 		mutex_unlock(&mdc800->io_lock);  in mdc800_usb_disconnect()
611 	mutex_lock(&mdc800->io_lock);  in mdc800_device_open()
648 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_open()
660 	mutex_lock(&mdc800->io_lock);  in mdc800_device_release()
673 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_release()
687 	mutex_lock(&mdc800->io_lock);  in mdc800_device_read()
690 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
697 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
702 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
710 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
731 					mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
744 					mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
751 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
760 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
769 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_read()
785 	mutex_lock(&mdc800->io_lock);  in mdc800_device_write()
788 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
793 		mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
802 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
808 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
829 			mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
842 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
856 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
865 				mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
879 						mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
899 							mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
927 							mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
937 	mutex_unlock(&mdc800->io_lock);  in mdc800_device_write()
992 	mutex_init (&mdc800->io_lock);  in usb_mdc800_init()