usb/core/hub.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  * usb hub driver head file
14 #include <linux/usb.h>
15 #include <linux/usb/ch11.h>
16 #include <linux/usb/hcd.h>
17 #include "usb.h"
39 	unsigned long		removed_bits[1]; /* ports with a "removed"
48 #if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */
79  * struct usb port - kernel's representation of a usb port
80  * @child: usb device attached to the port
83  * @peer: related usb2 and usb3 ports (share the same connector)
86  * @location: opaque representation of platform connector location
89  * @is_superspeed cache super-speed status
131 	hcs = hub->descriptor->wHubCharacteristics;  in hub_is_port_power_switchable()
137 	return hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS;  in hub_is_superspeed()
142 	return (hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS &&  in hub_is_superspeedplus()
143 		le16_to_cpu(hdev->descriptor.bcdUSB) >= 0x0310 &&  in hub_is_superspeedplus()
144 		hdev->bos->ssp_cap);  in hub_is_superspeedplus()
149 	unsigned delay = hub->descriptor->bPwrOn2PwrGood * 2;  in hub_power_on_good_delay()