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* [PATCH 1/1] usb: storage: Add quirk for Samsung Fit flash
@ 2020-03-02 14:21 Jim Lin
  2020-03-02 15:46 ` Alan Stern
  2020-05-02 13:56 ` Atanas Dinev
  0 siblings, 2 replies; 5+ messages in thread
From: Jim Lin @ 2020-03-02 14:21 UTC (permalink / raw)
  To: stern, linux-usb; +Cc: usb-storage, Jim Lin

Current driver has 240 (USB2.0) and 2048 (USB3.0) as max_sectors,
e.g., /sys/bus/scsi/devices/0:0:0:0/max_sectors

If data access times out, driver error handling will issue a port
reset.
Sometimes Samsung Fit (090C:1000) flash disk will not respond to
later Set Address or Get Descriptor command.

Adding this quirk to limit max_sectors to 64 sectors to avoid issue
occurring.

Signed-off-by: Jim Lin <jilin@nvidia.com>
---
 drivers/usb/storage/unusual_devs.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 1cd9b6305b06..1880f3e13f57 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1258,6 +1258,12 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999,
 		USB_SC_RBC, USB_PR_BULK, NULL,
 		0 ),
 
+UNUSUAL_DEV(0x090c, 0x1000, 0x1100, 0x1100,
+		"Samsung",
+		"Flash Drive FIT",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_MAX_SECTORS_64),
+
 /* aeb */
 UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff,
 		"Feiya",
-- 
2.1.4


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^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-09-12 12:58 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-02 14:21 [PATCH 1/1] usb: storage: Add quirk for Samsung Fit flash Jim Lin
2020-03-02 15:46 ` Alan Stern
2020-05-02 13:56 ` Atanas Dinev
2020-05-02 14:38   ` Jim Lin
2022-09-12 12:58     ` sunghwan jung

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