[Bug 213839] XHCI 7 port usb hub does not work correctly - bugzilla-daemon

From: bugzilla-daemon@bugzilla.kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 213839] XHCI 7 port usb hub does not work correctly
Date: Sat, 01 Jan 2022 18:46:44 +0000	[thread overview]
Message-ID: <bug-213839-208809-Q3PvjMM1XS@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-213839-208809@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=213839

--- Comment #16 from Jonathan McDowell (noodles@earth.li) ---
Excellent. Your fix appears to make things work fine. Built it on top of
5.12.12, plugged in the hub, plugged flash drive into a port off the second hub
chip and it gets detected fine:

[   64.055322] usb 1-1: new full-speed USB device number 2 using xhci_hcd
[   64.223348] usb 1-1: New USB device found, idVendor=0a05, idProduct=7211,
bcdDevice= 1.00
[   64.223357] usb 1-1: New USB device strings: Mfr=0, Product=1,
SerialNumber=0
[   64.223360] usb 1-1: Product: USB2.0 HUB
[   64.272644] hub 1-1:1.0: USB hub found
[   64.275305] hub 1-1:1.0: 4 ports detected
[   64.715299] usb 1-1.4: new full-speed USB device number 3 using xhci_hcd
[   64.843578] usb 1-1.4: New USB device found, idVendor=0a05, idProduct=7211,
bcdDevice= 1.00
[   64.843584] usb 1-1.4: New USB device strings: Mfr=0, Product=1,
SerialNumber=0
[   64.843586] usb 1-1.4: Product: USB2.0 HUB
[   64.880662] hub 1-1.4:1.0: USB hub found
[   64.883305] hub 1-1.4:1.0: 4 ports detected
[   78.843353] usb 1-1.4.2: new full-speed USB device number 4 using xhci_hcd
[   78.982539] usb 1-1.4.2: not running at top speed; connect to a high speed
hub
[   79.000617] usb 1-1.4.2: New USB device found, idVendor=0951,
idProduct=1697, bcdDevice= 1.00
[   79.000626] usb 1-1.4.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[   79.000629] usb 1-1.4.2: Product: DT Ultimate G3
[   79.000631] usb 1-1.4.2: Manufacturer: Kingston
[   79.000633] usb 1-1.4.2: SerialNumber: 0018F30C9F50BE5181712973
[   79.013499] SCSI subsystem initialized
[   79.015328] usb-storage 1-1.4.2:1.0: USB Mass Storage device detected
[   79.015438] scsi host0: usb-storage 1-1.4.2:1.0
[   79.015492] usbcore: registered new interface driver usb-storage
[   79.016658] usbcore: registered new interface driver uas
[   80.026221] scsi 0:0:0:0: Direct-Access     Kingston DT Ultimate G3   PMAP
PQ: 0 ANSI: 6
[   80.029716] scsi 0:0:0:0: Attached scsi generic sg0 type 0
[   80.032151] sd 0:0:0:0: [sda] 61407232 512-byte logical blocks: (31.4
GB/29.3 GiB)
[   80.033068] sd 0:0:0:0: [sda] Write Protect is off
[   80.033070] sd 0:0:0:0: [sda] Mode Sense: 2b 80 00 08
[   80.033986] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled,
doesn't support DPO or FUA
[   80.271640]  sda: sda1
[   80.275055] sd 0:0:0:0: [sda] Attached SCSI removable disk
[   82.061123] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts:
errors=remount-ro. Quota mode: none.

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