linux-kernel - Re: [PATCH v4] usb: Improves USB2.0 write performance.

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Date:   Tue, 30 Aug 2022 22:01:38 -0400
From:   Alan Stern <stern@...land.harvard.edu>
To:     Hu Xiaoying <huxiaoying@...inos.cn>
Cc:     gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
        usb-storage@...ts.one-eyed-alien.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] usb: Improves USB2.0 write performance.

On Wed, Aug 31, 2022 at 09:56:24AM +0800, Hu Xiaoying wrote:
> USB external storage device(0x0b05:1932), use gnome-disk-utility tools
> to test usb write  < 30MB/s.
> if does not to load module of uas for this device, can increase the
> write speed from 20MB/s to >40MB/s.
> 
> Signed-off-by: Hu Xiaoying <huxiaoying@...inos.cn>
> ---

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

> change for v4
>  - Update two email addresses to be the same.
> change for v3
>  - Does not send html mail to the mailing lists.
>  - Update patch, which sorted by vendor ID and product ID.
>  - Modify discription, correct some english words.
> change for v2
>  - Update discription for patch.
> ---
>  drivers/usb/storage/unusual_uas.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
> index 4051c8cd0cd8..23ab3b048d9b 100644
> --- a/drivers/usb/storage/unusual_uas.h
> +++ b/drivers/usb/storage/unusual_uas.h
> @@ -62,6 +62,13 @@ UNUSUAL_DEV(0x0984, 0x0301, 0x0128, 0x0128,
>  		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
>  		US_FL_IGNORE_UAS),
>  
> +/* Reported-by: Tom Hu <huxiaoying@...inos.cn> */
> +UNUSUAL_DEV(0x0b05, 0x1932, 0x0000, 0x9999,
> +		"ASUS",
> +		"External HDD",
> +		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
> +		US_FL_IGNORE_UAS),
> +
>  /* Reported-by: David Webb <djw@....ac.uk> */
>  UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999,
>  		"Seagate",
> -- 
> 2.25.1
>