USB Hub Kernel Debug

USB设备连接与断开记录

最新推荐文章于 2025-07-03 09:53:35 发布

chinaunixj

最新推荐文章于 2025-07-03 09:53:35 发布

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分类专栏：外设协议文章标签： interface file

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此记录详细展示了在一个特定时间点上，USB设备从连接到被识别，再到最终断开的全过程。其中包括了设备的速度变化、状态更新、以及设备的具体信息如供应商ID和产品ID等。

Mar 26 10:19:50 localhost kernel: usb usb1: usb resume
Mar 26 10:19:50 localhost kernel: ehci_hcd 0000:00:1d.7: resume root hub
Mar 26 10:19:50 localhost kernel: hub 1-0:1.0: hub_resume
Mar 26 10:19:50 localhost kernel: ehci_hcd 0000:00:1d.7: GetStatus port 5 status 001803 POWER sig=j CSC CONNECT
Mar 26 10:19:50 localhost kernel: hub 1-0:1.0: port 5: status 0501 change 0001
Mar 26 10:19:50 localhost kernel: hub 1-0:1.0: state 7 ports 8 chg 0020 evt 0000
Mar 26 10:19:50 localhost kernel: hub 1-0:1.0: port 5, status 0501, change 0000, 480 Mb/s
Mar 26 10:19:50 localhost kernel: ehci_hcd 0000:00:1d.7: port 5 high speed
Mar 26 10:19:50 localhost kernel: ehci_hcd 0000:00:1d.7: GetStatus port 5 status 001005 POWER sig=se0 PE CONNECT
Mar 26 10:19:50 localhost kernel: usb 1-5: new high speed USB device using ehci_hcd and address 3
Mar 26 10:19:51 localhost kernel: ehci_hcd 0000:00:1d.7: port 5 high speed
Mar 26 10:19:51 localhost kernel: ehci_hcd 0000:00:1d.7: GetStatus port 5 status 001005 POWER sig=se0 PE CONNECT
Mar 26 10:19:51 localhost kernel: usb 1-5: udev 3, busnum 1, minor = 2
Mar 26 10:19:51 localhost kernel: usb 1-5: New USB device found, idVendor=058f, idProduct=6254
Mar 26 10:19:51 localhost kernel: usb 1-5: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Mar 26 10:19:51 localhost kernel: usb 1-5: uevent
Mar 26 10:19:51 localhost kernel: usb 1-5: usb_probe_device
Mar 26 10:19:51 localhost kernel: usb 1-5: configuration #1 chosen from 1 choice
Mar 26 10:19:51 localhost kernel: usb 1-5: adding 1-5:1.0 (config #1, interface 0)
Mar 26 10:19:51 localhost kernel: usb 1-5:1.0: uevent
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: usb_probe_interface
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: usb_probe_interface - got id
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: USB hub found
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: 4 ports detected
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: standalone hub
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: ganged power switching
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: global over-current protection
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: Single TT
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: TT requires at most 8 FS bit times (666 ns)
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: Port indicators are supported
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: power on to power good time: 100ms
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: local power source is good
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: no over-current condition exists
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: enabling power on all ports
Mar 26 10:19:51 localhost kernel: usb 1-5: uevent
Mar 26 10:19:51 localhost kernel: drivers/usb/core/inode.c: creating file '003'
Mar 26 10:19:51 localhost kernel: usb 1-5: link qh256-0001/f468abc0 start 2 [1/0 us]
Mar 26 10:19:51 localhost kernel: hub 1-5:1.0: state 7 ports 4 chg 0000 evt 0000
Mar 26 10:19:54 localhost kernel: hub 1-5:1.0: hub_suspend
Mar 26 10:19:54 localhost kernel: usb 1-5: unlink qh256-0001/f468abc0 start 2 [1/0 us]
Mar 26 10:19:54 localhost kernel: usb 1-5: usb auto-suspend
Mar 26 10:19:55 localhost kernel: hub 1-0:1.0: state 7 ports 8 chg 0000 evt 0020
Mar 26 10:19:55 localhost kernel: ehci_hcd 0000:00:1d.7: GetStatus port 5 status 001002 POWER sig=se0 CSC
Mar 26 10:19:55 localhost kernel: hub 1-0:1.0: port 5, status 0100, change 0001, 12 Mb/s
Mar 26 10:19:55 localhost kernel: usb 1-5: USB disconnect, address 3
Mar 26 10:19:55 localhost kernel: usb 1-5: unregistering device
Mar 26 10:19:55 localhost kernel: usb 1-5: usb_disable_device nuking all URBs
Mar 26 10:19:55 localhost kernel: usb 1-5: unregistering interface 1-5:1.0
Mar 26 10:19:55 localhost kernel: usb 1-5:1.0: uevent
Mar 26 10:19:55 localhost kernel: usb 1-5: uevent
Mar 26 10:19:55 localhost kernel: hub 1-0:1.0: debounce: port 5: total 100ms stable 100ms status 0x100