linux-kernel - Re: [PATCH] usb-storage: Add quirk for ScanLogic SL11R-IDE older than 2.6c

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Date:   Tue, 14 Sep 2021 10:22:24 -0400
From:   Alan Stern <stern@...land.harvard.edu>
To:     Ondrej Zary <linux@...y.sk>
Cc:     linux-usb@...r.kernel.org, usb-storage@...ts.one-eyed-alien.net,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb-storage: Add quirk for ScanLogic SL11R-IDE older
 than 2.6c

On Mon, Sep 13, 2021 at 11:01:06PM +0200, Ondrej Zary wrote:
> ScanLogic SL11R-IDE with firmware older than 2.6c (the latest one) has
> broken tag handling, preventing the device from working at all:
> usb 1-1: new full-speed USB device number 2 using uhci_hcd
> usb 1-1: New USB device found, idVendor=04ce, idProduct=0002, bcdDevice= 2.60
> usb 1-1: New USB device strings: Mfr=1, Product=1, SerialNumber=0
> usb 1-1: Product: USB Device
> usb 1-1: Manufacturer: USB Device
> usb-storage 1-1:1.0: USB Mass Storage device detected
> scsi host2: usb-storage 1-1:1.0
> usbcore: registered new interface driver usb-storage
> usb 1-1: reset full-speed USB device number 2 using uhci_hcd
> usb 1-1: reset full-speed USB device number 2 using uhci_hcd
> usb 1-1: reset full-speed USB device number 2 using uhci_hcd
> usb 1-1: reset full-speed USB device number 2 using uhci_hcd
> 
> Add US_FL_BULK_IGNORE_TAG to fix it. Also update my e-mail address.
> 
> 2.6c is the only firmware that claims Linux compatibility.
> The firmware can be upgraded using ezotgdbg utility:
> https://github.com/asciilifeform/ezotgdbg
> 
> Signed-off-by: Ondrej Zary <linux@...y.sk>
> ---

Acked-by: Alan Stern <stern@...land.harvard.edu>

>  drivers/usb/storage/unusual_devs.h | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
> index efa972be2ee3..c6b3fcf90180 100644
> --- a/drivers/usb/storage/unusual_devs.h
> +++ b/drivers/usb/storage/unusual_devs.h
> @@ -416,9 +416,16 @@ UNUSUAL_DEV(  0x04cb, 0x0100, 0x0000, 0x2210,
>  		USB_SC_UFI, USB_PR_DEVICE, NULL, US_FL_FIX_INQUIRY | US_FL_SINGLE_LUN),
>  
>  /*
> - * Reported by Ondrej Zary <linux@...nbow-software.org>
> + * Reported by Ondrej Zary <linux@...y.sk>
>   * The device reports one sector more and breaks when that sector is accessed
> + * Firmwares older than 2.6c (the latest one and the only that claims Linux
> + * support) have also broken tag handling
>   */
> +UNUSUAL_DEV(  0x04ce, 0x0002, 0x0000, 0x026b,
> +		"ScanLogic",
> +		"SL11R-IDE",
> +		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
> +		US_FL_FIX_CAPACITY | US_FL_BULK_IGNORE_TAG),
>  UNUSUAL_DEV(  0x04ce, 0x0002, 0x026c, 0x026c,
>  		"ScanLogic",
>  		"SL11R-IDE",

Too bad the manufacturer didn't understand that 0x026c is not a valid 
bcdDevice value...