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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
include/linux/usb_usual.h
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@ -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 };