usb/core/driver.c

260 	 * unless the driver supports autosuspend.  in usb_probe_device()
361 	 * runtime-PM-enabled only if the driver has autosuspend support.  in usb_probe_interface()
575 	 * runtime-PM-enabled, but only if the driver has autosuspend  in usb_driver_claim_interface()
1399  * autosuspend, if an error occurs at any stage, all the interfaces
1407  * Autosuspend requests originating from a child device or an interface
1649  * This routine allows @udev to be autosuspended.  An autosuspend won't
1677  * usb_autosuspend_device - delayed autosuspend of a USB device and its interfaces
1678  * @udev: the usb_device to autosuspend
1681  * @udev and wants to allow it to autosuspend.  Examples would be when
1685  * interfaces are inactive then a delayed autosuspend will be attempted.
1708  * and needs to guarantee that it is not suspended.  No autosuspend will
1741  * finished using @intf and wants to allow it to autosuspend.  A typical
1746  * 0, a delayed autosuspend request for @intf's device is attempted.  The
1770  * autosuspend request if the counter is <= 0.  The difference is that it
1797  * autosuspend.
1894 /* Internal routine to check whether we may autosuspend a device. */
1903 	/* Fail if autosuspend is disabled, or any interfaces are in use, or  in autosuspend_check()
1913 			 * or else their drivers don't support autosuspend  in autosuspend_check()
1922 			/* Don't allow autosuspend if the device will need  in autosuspend_check()
1937 		dev_dbg(&udev->dev, "remote wakeup needed for autosuspend\n");  in autosuspend_check()
1943 	 * doesn't handle wakeup requests, don't allow autosuspend when  in autosuspend_check()
1961 	/* A USB device can be suspended if it passes the various autosuspend  in usb_runtime_suspend()
1970 	/* Allow a retry if autosuspend failed temporarily */  in usb_runtime_suspend()
2002 	 * autosuspend checks.  in usb_runtime_idle()