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

From: Alan Stern
Date: Tue Aug 30 2022 - 22:01:44 EST


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@xxxxxxxxxx>
> ---

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

> 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@xxxxxxxxxx> */
> +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@xxxxxxxxx> */
> UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999,
> "Seagate",
> --
> 2.25.1
>