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patch "USB: storage: Remove subclass and protocol overrides from Novatek" added to usb-linus

PATCH [email protected] 1 participant 1 message Nov 22, 2025

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This is a note to let you know that I've just added the patch titled

USB: storage: Remove subclass and protocol overrides from Novatek

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From df5fde297e617041449f603ed5f646861c80000b Mon Sep 17 00:00:00 2001
From: Alan Stern <[email protected]>
Date: Fri, 21 Nov 2025 16:29:34 -0500
Subject: USB: storage: Remove subclass and protocol overrides from Novatek
quirk

A report from Oleg Smirnov indicates that the unusual_devs quirks entry for the Novatek camera does not need to override the subclass and protocol parameters:

[3266355.209532] usb 1-3: new high-speed USB device number 10 using xhci_hcd
[3266355.333031] usb 1-3: New USB device found, idVendor=0603, idProduct=8611, bcdDevice= 1.00
[3266355.333040] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[3266355.333043] usb 1-3: Product: YICARCAM
[3266355.333045] usb 1-3: Manufacturer: XIAO-YI
[3266355.333047] usb 1-3: SerialNumber: 966110000000100
[3266355.338621] usb-storage 1-3:1.0: USB Mass Storage device detected
[3266355.338817] usb-storage 1-3:1.0: Quirks match for vid 0603 pid 8611: 4000
[3266355.338821] usb-storage 1-3:1.0: This device (0603,8611,0100 S 06 P 50) has unneeded SubClass and Protocol entries in unusual_devs.h (kernel 6.16.10-arch1-1)
                    Please send a copy of this message to

<[email protected]> and <[email protected]>

The overrides are harmless but they do provoke the driver into logging this annoying message. Update the entry to remove the unneeded entries.

---
 drivers/usb/storage/unusual_devs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/usb/storage/unusual_devs.h +1 -1
index dfa5276a5a43..47f50d7a385c 100644
@@ -938,7 +938,7 @@ UNUSUAL_DEV(  0x05e3, 0x0723, 0x9451, 0x9451,
 UNUSUAL_DEV(  0x0603, 0x8611, 0x0000, 0xffff,
 		"Novatek",
 		"NTK96550-based camera",
-		USB_SC_SCSI, USB_PR_BULK, NULL,
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_BULK_IGNORE_TAG ),
 
 /*
Signature · 1 line
2.52.0