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

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Message-Id: <20220830084325.752655-1-huxiaoying@kylinos.cn>
Date:   Tue, 30 Aug 2022 16:43:25 +0800
From:   Hu Xiaoying <huxiaoying@...inos.cn>
To:     stern@...land.harvard.edu, gregkh@...uxfoundation.org,
        linux-usb@...r.kernel.org, usb-storage@...ts.one-eyed-alien.net
Cc:     linux-media@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org, Hu Xiaoying <huxiaoying@...inos.cn>,
        Hu Xiaoying <huxiaoying@...il.com>
Subject: [PATCH] usb: Improves USB2.0 write performance

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 more than 40MB/s.

Signed-off-by: Hu Xiaoying <huxiaoying@...il.com>
---
 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..3925c7c67915 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@...il.com> */
+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