On Mon, 2 Mar 2020, Jim Lin wrote: > 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@xxxxxxxxxx> > --- > 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", Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
