usb/misc/ehset.c

1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
41 	 * going under test needs to be put in suspend before sending the  in ehset_prepare_port_for_testing()
51 		 * Wait for the port to be disabled. It's an arbitrary value  in ehset_prepare_port_for_testing()
58 		 * put the port in SUSPEND.  in ehset_prepare_port_for_testing()
70 	int ret = -EINVAL;  in ehset_probe()
72 	struct usb_device *hub_udev = dev->parent;  in ehset_probe()
74 	u8 portnum = dev->portnum;  in ehset_probe()
75 	u16 test_pid = le16_to_cpu(dev->descriptor.idProduct);  in ehset_probe()
115 		/* Test: wait for 15secs -> suspend -> 15secs delay -> resume */  in ehset_probe()
129 		/* Test: wait for 15secs -> GetDescriptor request */  in ehset_probe()
139 		 * GetDescriptor SETUP request -> 15secs delay -> IN & STATUS  in ehset_probe()
145 		if (hub_udev != dev->bus->root_hub) {  in ehset_probe()
146 			dev_err(&intf->dev, "SINGLE_STEP_SET_FEATURE test only supported on root hub\n");  in ehset_probe()
157 		dev_err(&intf->dev, "%s: unsupported PID: 0x%x\n",  in ehset_probe()