linux-kernel - Re: [PATCH] usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility

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Message-ID: <ZTyyDXYR4f6WKdLM@debian.me>
Date:   Sat, 28 Oct 2023 14:02:37 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     LihaSika <lihasika@...il.com>,
        Linux USB <linux-usb@...r.kernel.org>,
        Linux USB Storage <usb-storage@...ts.one-eyed-alien.net>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Milan Svoboda <milan.svoboda@...trum.cz>,
        Matthieu Castet <castet.matthieu@...e.fr>
Subject: Re: [PATCH] usb: storage: set 1.50 as the lower bcdDevice for older
 "Super Top" compatibility

On Fri, Oct 27, 2023 at 08:28:04PM +0300, LihaSika wrote:
> Change lower bcdDevice value for "Super Top USB 2.0  SATA BRIDGE" to match
> 1.50. I have such an older device with bcdDevice=1.50 and it will not work
> otherwise.

What about below description?

```
Some old USB hard drives using Super Top USB 2.0 SATA bridge have lower
minimum bcdDevice value than currently allowed (1.60). Such devices
cannot be used by ums-cypress driver since their bcdDevice is out of range.

Lower minimum bcdDevice to fix that. 
```

> 
> Cc: stable@...r.kernel.org
> Signed-off-by: Liha Sikanen <lihasika@...il.com>

Is your intended author name in your From: header or Signed-off-by: trailer?

Also, don't forget to add Fixes: tag; that is:

Fixes: a9c143c82608 ("usb-storage: restrict bcdDevice range for Super Top in Cypress ATACB")

When above reviews are addressed, resend as v2. Make sure that the patch
subject begins with `[PATCH v2]`.

> ---
> 
> diff --git a/drivers/usb/storage/unusual_cypress.h b/drivers/usb/storage/unusual_cypress.h
> index 0547daf..5df4075 100644
> --- a/drivers/usb/storage/unusual_cypress.h
> +++ b/drivers/usb/storage/unusual_cypress.h
> @@ -19,7 +19,7 @@ UNUSUAL_DEV(  0x04b4, 0x6831, 0x0000, 0x9999,
>  		"Cypress ISD-300LP",
>  		USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),
>  
> -UNUSUAL_DEV( 0x14cd, 0x6116, 0x0160, 0x0160,
> +UNUSUAL_DEV( 0x14cd, 0x6116, 0x0150, 0x0160,
>  		"Super Top",
>  		"USB 2.0  SATA BRIDGE",
>  		USB_SC_CYP_ATACB, USB_PR_DEVICE, NULL, 0),
> 

The diff itself is LGTM.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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