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usb-storage: add new no_read_disc_info quirk

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Appotech ax3003 (the larger brother of the ax203) based devices are even
more buggy then the ax203.  They will go of into lala land when ever they
see a READ_DISC_INFO scsi command.  So add a new US_FL which tells the
scsi sr driver to not issue any READ_DISC_INFO scsi commands.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Hans de Goede 2010-10-01 14:20:10 -07:00 committed by Greg Kroah-Hartman
parent 8e04d8056c
commit ae38c78a03
3 changed files with 12 additions and 1 deletions
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4
drivers/usb/storage/scsiglue.c
View File

@ -253,6 +253,10 @@ static int slave_configure(struct scsi_device *sdev)
* or to force 192-byte transfer lengths for MODE SENSE.
* But they do need to use MODE SENSE(10). */
sdev->use_10_for_ms = 1;
/* Some (fake) usb cdrom devices don't like READ_DISC_INFO */
if (us->fflags & US_FL_NO_READ_DISC_INFO)
sdev->no_read_disc_info = 1;
}
/* The CB and CBI transports have no way to pass LUN values

5
drivers/usb/storage/unusual_devs.h
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@ -1858,6 +1858,11 @@ UNUSUAL_DEV( 0x1908, 0x1320, 0x0000, 0x0000,
"Photo Frame",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_BAD_SENSE ),
UNUSUAL_DEV( 0x1908, 0x3335, 0x0200, 0x0200,
"BUILDWIN",
"Photo Frame",
USB_SC_DEVICE, USB_PR_DEVICE, NULL,
US_FL_NO_READ_DISC_INFO ),
UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001,
"ST",

4
include/linux/usb_usual.h
View File

@ -58,7 +58,9 @@
US_FLAG(CAPACITY_OK, 0x00010000) \
/* READ CAPACITY response is correct */ \
US_FLAG(BAD_SENSE, 0x00020000) \
/* Bad Sense (never more than 18 bytes) */
/* Bad Sense (never more than 18 bytes) */ \
US_FLAG(NO_READ_DISC_INFO, 0x00040000) \
/* cannot handle READ_DISC_INFO */
#define US_FLAG(name, value) US_FL_##name = value ,
enum { US_DO_ALL_FLAGS };