Messages in this thread | | | Date | Sat, 09 Jun 2012 22:44:40 +0400 | From | Sergei Shtylyov <> | Subject | Re: [PATCH v3 3/3] usb: storage: update usb devices for write cache quirk in quirk list. |
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Hello.
On 06/09/2012 09:41 PM, Namjae Jeon wrote:
> Update information of Seagate Portable HDD and WD My Passport HDD in > quirk list.
> Signed-off-by: Namjae Jeon<namjae.jeon@samsung.com> > Signed-off-by: Pankaj Kumar<pankaj.km@samsung.com> > Signed-off-by: Amit Sahrawat<a.sahrawat@samsung.com> > --- > drivers/usb/storage/unusual_devs.h | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+)
> diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h > index 1719886..64f0369 100644 > --- a/drivers/usb/storage/unusual_devs.h > +++ b/drivers/usb/storage/unusual_devs.h > @@ -1267,6 +1267,18 @@ UNUSUAL_DEV( 0x0af0, 0xd357, 0x0000, 0x0000, > USB_SC_DEVICE, USB_PR_DEVICE, NULL, > 0 ), > > +/* Reported by Namjae Jeon<namjae.jeon@samsung.com> > + * Even though write cache is enabled by default, > + * SCSI driver assume that cache is not enabled > + * which in turn might lead loss of data ^ to the
> + * since data still will be in cache. > + * So this entry is needed for assuming that cache is enabled. > + */ > +UNUSUAL_DEV(0x0bc2, 0x2300, 0x0000, 0x9999, > + "Seagate", > + "Portable HDD", > + USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_WRITE_CACHE), > + > /* Reported by Ben Efros<ben@pc-doctor.com> */ > UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000, > "Seagate", > @@ -1468,6 +1480,18 @@ UNUSUAL_DEV( 0x1058, 0x0704, 0x0000, 0x9999, > USB_SC_DEVICE, USB_PR_DEVICE, NULL, > US_FL_SANE_SENSE), > > +/* Reported by Namjae Jeon<namjae.jeon@samsung.com> > + * Even though write cache is enabled by default, > + * SCSI driver assume that cache is not enabled > + * which in turn might lead loss of data ^ to the
WBR, Sergei
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