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Steam Deck OLED not detecting third-party USB-C hub without external power supplied to the hub #1769

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Zekfoo opened this issue Jan 8, 2025 · 2 comments
Open

Steam Deck OLED not detecting third-party USB-C hub without external power supplied to the hub #1769

Zekfoo opened this issue Jan 8, 2025 · 2 comments

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@Zekfoo
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Zekfoo commented Jan 8, 2025 •
edited
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Your system information

  • Steam client version: 1736213535
  • SteamOS version: 3.6.21
  • Opted into Steam client beta?: Yes
  • Opted into SteamOS beta?: Yes
  • Have you checked for updates in Settings > System?: Yes

Please describe your issue in as much detail as possible:

Attempting to connect this USB-C hub (9-in-1 variant) to my Steam Deck OLED.

What should be possible with this hub connected:

  • Connect USB-C wireless headset dongle
  • Connect to network over Ethernet
  • Ability to charge the Steam Deck via external power connection (but this power connection shouldn't be required for the above to work)

All of the above work when connecting the hub to my other devices (so far have tested with my Android phone, and a desktop and laptop running Windows)

What actually happens:

  • The hub only works specifically when it is first connected to external power, then to the Steam Deck
  • When connected to the Steam Deck first, or without external power at all, it does not work i.e. none of the hub's ports work, nothing relevant is shown with lsusb or dmesg - it appears as if the hub is not connected at all
  • Using a different USB-A hub (via a USB-C to A dongle) which does work with my Steam Deck without external power, the USB-C hub works if it is connected (daisy-chained) to the USB-A hub:
    • i.e. [Steam Deck] -> [USB-C to A dongle] -> [USB-A hub (no external power)] -> [USB-C hub (no external power)] works!
    • This might rule out power load on the USB-C port being an issue, since it's perfectly capable of powering both hubs daisy-chained together + USB peripherals. This points me to thinking that this is a firmware or Linux issue.

My BIOS settings already have the USB port set to XHCI mode.

I have also made a Reddit post about this issue for better visibility: https://www.reddit.com/r/SteamDeck/comments/1hwx7nj/steam_deck_oled_not_detecting_usbc_hub_without/

Steps for reproducing this issue:

  1. Connect the USB-C hub linked at the top to Steam Deck OLED, without any external power connection to the hub
  2. Witness as the Steam Deck does not detect the USB-C hub at all.

Attempts to troubleshoot

  • Tried switching to Preview channel
  • Tried reverting to Main channel
  • Tried resetting PD controller (... button + volume-)
  • Tried putting Steam Deck in battery storage mode

Any suggestions for additional troubleshooting steps/commands/etc that I can try?
@Zekfoo
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Zekfoo commented Jan 9, 2025

Output from udevadm monitor when I connect the USB-C hub directly to my Steam Deck, repeats in pairs every ~2 seconds while the hub remains plugged in:

KERNEL[6810.593017] change   /devices/pci0000:00/0000:00:14.3/PNP0C09:00/VLV0100:00/steamdeck-extcon/extcon/extcon0 (extcon)
UDEV  [6810.599666] change   /devices/pci0000:00/0000:00:14.3/PNP0C09:00/VLV0100:00/steamdeck-extcon/extcon/extcon0 (extcon)

Output from udevadm monitor when I connect the USB-C hub via the USB-A hub (daisychain setup mentioned earlier):

KERNEL[6911.752548] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[6911.804926] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[6911.805263] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
KERNEL[6911.806895] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
KERNEL[6911.806955] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [6911.809284] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [6911.811724] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [6911.813964] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
UDEV  [6911.815948] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
UDEV  [6911.818205] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[6911.978165] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[6912.029207] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[6912.029267] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[6912.032424] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[6912.032493] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [6912.034723] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [6912.037467] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [6912.040013] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [6912.042504] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [6912.045487] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[6912.126257] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
KERNEL[6912.189113] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
KERNEL[6912.189478] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1/2-1.1.1:1.0 (usb)
KERNEL[6912.191202] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1/2-1.1.1:1.0 (usb)
KERNEL[6912.191253] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
KERNEL[6912.284815] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2 (usb)
KERNEL[6912.285388] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0 (usb)
KERNEL[6912.285584] add      /devices/virtual/workqueue/scsi_tmf_0 (workqueue)
KERNEL[6912.285709] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0 (scsi)
KERNEL[6912.285757] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/scsi_host/host0 (scsi_host)
KERNEL[6912.285862] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0 (usb)
KERNEL[6912.285905] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2 (usb)
UDEV  [6912.287618] add      /devices/virtual/workqueue/scsi_tmf_0 (workqueue)
KERNEL[6912.498691] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
KERNEL[6912.541603] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
KERNEL[6912.541677] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0 (usb)
KERNEL[6912.545703] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0 (usb)
KERNEL[6912.545755] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
UDEV  [6912.548493] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
UDEV  [6912.551674] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
UDEV  [6912.554449] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0 (usb)
UDEV  [6912.556902] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1:1.0 (usb)
UDEV  [6912.559567] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1 (usb)
KERNEL[6912.851136] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
KERNEL[6912.931862] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
KERNEL[6912.939088] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0 (usb)
KERNEL[6912.989443] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4 (usb)
KERNEL[6913.037211] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4/1-1.1.1.4:1.0 (usb)
KERNEL[6913.037280] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4 (usb)
UDEV  [6913.039408] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4 (usb)
UDEV  [6913.041852] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4/1-1.1.1.4:1.0 (usb)
UDEV  [6913.044748] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.1/1-1.1.1.4 (usb)
KERNEL[6913.156267] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0 (net)
KERNEL[6913.156312] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0/queues/rx-0 (queues)
KERNEL[6913.156338] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0/queues/tx-0 (queues)
KERNEL[6913.156603] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0 (usb)
KERNEL[6913.156791] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.1 (usb)
KERNEL[6913.156849] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.1 (usb)
KERNEL[6913.156912] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
UDEV  [6913.160134] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
UDEV  [6913.164646] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
UDEV  [6913.166050] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
UDEV  [6913.166191] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2 (usb)
UDEV  [6913.167898] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1/2-1.1.1:1.0 (usb)
UDEV  [6913.168824] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0 (usb)
UDEV  [6913.169158] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
UDEV  [6913.170681] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1/2-1.1.1:1.0 (usb)
UDEV  [6913.171601] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0 (scsi)
UDEV  [6913.172018] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.1 (usb)
UDEV  [6913.172296] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0 (usb)
UDEV  [6913.174091] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/scsi_host/host0 (scsi_host)
UDEV  [6913.174507] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.1 (usb)
UDEV  [6913.175541] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.1 (usb)
UDEV  [6913.176773] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0 (usb)
UDEV  [6913.185051] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2 (usb)
UDEV  [6913.190707] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0 (net)
UDEV  [6913.193612] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0/queues/rx-0 (queues)
UDEV  [6913.193866] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0/net/eth0/queues/tx-0 (queues)
UDEV  [6913.196603] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4/2-1.1.4:2.0 (usb)
UDEV  [6913.204974] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.4 (usb)
KERNEL[6913.290650] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0 (scsi)
KERNEL[6913.290694] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
KERNEL[6913.290720] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
KERNEL[6913.290915] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
KERNEL[6913.290962] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
KERNEL[6913.291205] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
KERNEL[6913.291243] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_device/0:0:0:1 (scsi_device)
KERNEL[6913.291350] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/bsg/0:0:0:1 (bsg)
KERNEL[6913.291378] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_disk/0:0:0:1 (scsi_disk)
UDEV  [6913.293292] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0 (scsi)
UDEV  [6913.295909] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [6913.296131] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
UDEV  [6913.299273] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
UDEV  [6913.299582] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
UDEV  [6913.299624] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
UDEV  [6913.299660] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_device/0:0:0:1 (scsi_device)
UDEV  [6913.301426] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/bsg/0:0:0:1 (bsg)
UDEV  [6913.301772] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_disk/0:0:0:1 (scsi_disk)
KERNEL[6913.494748] add      /devices/virtual/bdi/8:0 (bdi)
KERNEL[6913.494822] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
KERNEL[6913.494864] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [6913.530010] add      /devices/virtual/bdi/8:0 (bdi)
KERNEL[6913.697729] add      /devices/virtual/bdi/8:16 (bdi)
KERNEL[6913.697805] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
KERNEL[6913.697842] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
KERNEL[6913.698040] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
KERNEL[6913.698913] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
UDEV  [6913.732958] add      /devices/virtual/bdi/8:16 (bdi)
UDEV  [6915.137435] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
UDEV  [6915.144734] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
UDEV  [6915.345240] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
UDEV  [6915.348298] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [6916.168955] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
UDEV  [6916.371743] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1.2/2-1.1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)

@Zekfoo
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Zekfoo commented Jan 9, 2025

Output from udevadm monitor when I connect the USB-C hub directly to my Steam Deck while connected to external power

KERNEL[906.679094] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
KERNEL[906.734107] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
KERNEL[906.734182] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1:1.0 (usb)
KERNEL[906.737668] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1:1.0 (usb)
KERNEL[906.737741] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
UDEV  [906.740080] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
UDEV  [906.742353] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
UDEV  [906.744238] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1:1.0 (usb)
UDEV  [906.746022] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1:1.0 (usb)
KERNEL[906.747471] change   /devices/LNXSYSTM:00/LNXSYBUS:00/ACPI0003:00/power_supply/ACAD (power_supply)
UDEV  [906.748465] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1 (usb)
UDEV  [906.750373] change   /devices/LNXSYSTM:00/LNXSYBUS:00/ACPI0003:00/power_supply/ACAD (power_supply)
KERNEL[906.751334] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
UDEV  [906.752435] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
KERNEL[906.798739] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
UDEV  [906.800453] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
KERNEL[906.817518] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
KERNEL[906.846120] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
KERNEL[906.846565] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1:1.0 (usb)
KERNEL[906.848173] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1:1.0 (usb)
KERNEL[906.848224] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
UDEV  [906.849671] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
UDEV  [906.852158] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
UDEV  [906.854212] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1:1.0 (usb)
UDEV  [906.856192] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1:1.0 (usb)
UDEV  [906.858496] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1 (usb)
KERNEL[907.162345] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[907.214086] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[907.214171] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[907.217157] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
KERNEL[907.217236] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [907.219030] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [907.221600] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
UDEV  [907.223942] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [907.226165] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1:1.0 (usb)
UDEV  [907.228655] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1 (usb)
KERNEL[907.233494] change   /devices/pci0000:00/0000:00:14.3/PNP0C09:00/VLV0100:00/steamdeck-extcon/extcon/extcon0 (extcon)
UDEV  [907.235159] change   /devices/pci0000:00/0000:00:14.3/PNP0C09:00/VLV0100:00/steamdeck-extcon/extcon/extcon0 (extcon)
KERNEL[907.253744] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[907.272607] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
UDEV  [907.274117] change   /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0A:00/power_supply/BAT1 (power_supply)
KERNEL[907.277991] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[907.278286] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
KERNEL[907.279885] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
KERNEL[907.279992] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
KERNEL[907.376725] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2 (usb)
KERNEL[907.378301] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0 (usb)
KERNEL[907.378358] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2 (usb)
KERNEL[907.740717] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
KERNEL[907.805222] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4 (usb)
KERNEL[907.827274] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
KERNEL[907.827813] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.0 (usb)
KERNEL[907.827854] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4 (usb)
UDEV  [907.830095] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4 (usb)
UDEV  [907.832340] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4/1-1.1.4:1.0 (usb)
KERNEL[907.834466] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0 (usb)
KERNEL[907.834522] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.1 (usb)
KERNEL[907.834572] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
UDEV  [907.835085] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb1/1-1/1-1.1/1-1.1.4 (usb)
UDEV  [907.836664] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [907.839577] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [907.842048] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
UDEV  [907.842142] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2 (usb)
UDEV  [907.842246] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
UDEV  [907.844545] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1/2-1.1:1.0 (usb)
UDEV  [907.845160] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
UDEV  [907.847138] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.1 (usb)
UDEV  [907.847479] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.1 (usb)
KERNEL[907.858132] add      /module/mii (module)
KERNEL[907.858406] add      /devices/virtual/workqueue/scsi_tmf_0 (workqueue)
KERNEL[907.858625] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0 (scsi)
KERNEL[907.858680] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/scsi_host/host0 (scsi_host)
UDEV  [907.858706] add      /module/mii (module)
KERNEL[907.858791] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0 (usb)
KERNEL[907.858816] add      /bus/usb/drivers/usb-storage (drivers)
KERNEL[907.858834] add      /module/usb_storage (module)
UDEV  [907.859087] add      /devices/virtual/workqueue/scsi_tmf_0 (workqueue)
UDEV  [907.859451] add      /bus/usb/drivers/usb-storage (drivers)
UDEV  [907.860443] add      /module/usb_storage (module)
KERNEL[907.872011] add      /module/usbnet (module)
KERNEL[907.872189] add      /bus/usb/drivers/uas (drivers)
KERNEL[907.872224] add      /module/uas (module)
UDEV  [907.872591] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0 (usb)
UDEV  [907.872802] add      /module/usbnet (module)
UDEV  [907.872869] add      /module/uas (module)
UDEV  [907.872938] add      /bus/usb/drivers/uas (drivers)
KERNEL[907.880008] add      /bus/usb/drivers/cdc_ether (drivers)
KERNEL[907.880053] add      /module/cdc_ether (module)
UDEV  [907.880197] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2 (usb)
UDEV  [907.880584] add      /module/cdc_ether (module)
UDEV  [907.880764] add      /bus/usb/drivers/cdc_ether (drivers)
UDEV  [907.882276] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0 (scsi)
UDEV  [907.884773] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/scsi_host/host0 (scsi_host)
UDEV  [907.887268] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0 (usb)
KERNEL[907.890330] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.1 (usb)
KERNEL[908.109441] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/eth0 (net)
KERNEL[908.109487] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/eth0/queues/rx-0 (queues)
KERNEL[908.109509] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/eth0/queues/tx-0 (queues)
KERNEL[908.109842] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0 (usb)
KERNEL[908.109970] add      /bus/usb/drivers/cdc_ncm (drivers)
KERNEL[908.110007] add      /module/cdc_ncm (module)
UDEV  [908.110420] add      /module/cdc_ncm (module)
UDEV  [908.110675] add      /bus/usb/drivers/cdc_ncm (drivers)
KERNEL[908.122267] add      /bus/usb/drivers/cdc_wdm (drivers)
KERNEL[908.122353] add      /module/cdc_wdm (module)
UDEV  [908.122919] add      /module/cdc_wdm (module)
UDEV  [908.123118] add      /bus/usb/drivers/cdc_wdm (drivers)
KERNEL[908.131009] add      /bus/usb/drivers/cdc_mbim (drivers)
KERNEL[908.131065] add      /module/cdc_mbim (module)
UDEV  [908.131457] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0 (usb)
UDEV  [908.131582] add      /module/cdc_mbim (module)
UDEV  [908.131898] add      /bus/usb/drivers/cdc_mbim (drivers)
UDEV  [908.139104] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4 (usb)
UDEV  [908.140971] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.1 (usb)
KERNEL[908.146762] move     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/enp4s0f3u1u4c2 (net)
UDEV  [908.187345] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/enp4s0f3u1u4c2 (net)
UDEV  [908.189757] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/eth0/queues/rx-0 (queues)
UDEV  [908.189922] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/eth0/queues/tx-0 (queues)
UDEV  [908.192171] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0 (usb)
UDEV  [908.199588] move     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.4/2-1.4:2.0/net/enp4s0f3u1u4c2 (net)
KERNEL[908.864300] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0 (scsi)
KERNEL[908.864356] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
KERNEL[908.864382] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
KERNEL[908.864568] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
KERNEL[908.864617] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
KERNEL[908.864686] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
KERNEL[908.864720] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_device/0:0:0:1 (scsi_device)
KERNEL[908.864867] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/bsg/0:0:0:1 (bsg)
KERNEL[908.864904] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_disk/0:0:0:1 (scsi_disk)
UDEV  [908.866842] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0 (scsi)
UDEV  [908.869074] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
UDEV  [908.869341] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [908.871910] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_device/0:0:0:1 (scsi_device)
UDEV  [908.871961] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/scsi_disk/0:0:0:1 (scsi_disk)
UDEV  [908.872037] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/bsg/0:0:0:1 (bsg)
UDEV  [908.872159] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_device/0:0:0:0 (scsi_device)
UDEV  [908.872404] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/bsg/0:0:0:0 (bsg)
UDEV  [908.873390] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/scsi_disk/0:0:0:0 (scsi_disk)
KERNEL[909.068803] add      /devices/virtual/bdi/8:0 (bdi)
KERNEL[909.068882] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
KERNEL[909.068919] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [909.103595] add      /devices/virtual/bdi/8:0 (bdi)
KERNEL[909.271842] add      /devices/virtual/bdi/8:16 (bdi)
KERNEL[909.271915] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
KERNEL[909.271954] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
KERNEL[909.271998] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
KERNEL[909.272873] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
UDEV  [909.306262] add      /devices/virtual/bdi/8:16 (bdi)
UDEV  [910.500670] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
UDEV  [910.507985] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0 (scsi)
UDEV  [910.909008] add      /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)
UDEV  [910.912124] bind     /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1 (scsi)
UDEV  [911.525139] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:0/block/sda (block)
UDEV  [911.932831] change   /devices/pci0000:00/0000:00:08.1/0000:04:00.3/usb2/2-1/2-1.2/2-1.2:1.0/host0/target0:0:0/0:0:0:1/block/sdb (block)

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