From 00914025cc4e783d4703b4db1d47b41f389e50c8 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 1 Oct 2010 14:20:11 -0700 Subject: [PATCH] usb-storage: add new no_read_capacity_16 quirk Some Rockbox based mp4 players will crash when ever they see a read_capacity_16 scsi command. So add a new US_FL which tells the scsi sd driver to not issue any read_capacity_16 scsi commands. Signed-off-by: Hans de Goede Cc: James Bottomley Cc: Alan Stern Cc: Matthew Dharm Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/scsiglue.c | 4 ++++ drivers/usb/storage/unusual_devs.h | 3 ++- include/linux/usb_usual.h | 4 +++- 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index a1128ff..a688b1e 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -209,6 +209,10 @@ static int slave_configure(struct scsi_device *sdev) if (us->fflags & US_FL_CAPACITY_HEURISTICS) sdev->guess_capacity = 1; + /* Some devices cannot handle READ_CAPACITY_16 */ + if (us->fflags & US_FL_NO_READ_CAPACITY_16) + sdev->no_read_capacity_16 = 1; + /* assume SPC3 or latter devices support sense size > 18 */ if (sdev->scsi_level > SCSI_SPC_2) us->fflags |= US_FL_SANE_SENSE; diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index c8264ff..6ccdd3d 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -877,7 +877,8 @@ UNUSUAL_DEV( 0x071b, 0x3203, 0x0000, 0x0000, "RockChip", "MP3", USB_SC_DEVICE, USB_PR_DEVICE, NULL, - US_FL_NO_WP_DETECT | US_FL_MAX_SECTORS_64), + US_FL_NO_WP_DETECT | US_FL_MAX_SECTORS_64 | + US_FL_NO_READ_CAPACITY_16), /* Reported by Jean-Baptiste Onofre * Support the following product : diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index e62e9fe..71693d4 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h @@ -60,7 +60,9 @@ US_FLAG(BAD_SENSE, 0x00020000) \ /* Bad Sense (never more than 18 bytes) */ \ US_FLAG(NO_READ_DISC_INFO, 0x00040000) \ - /* cannot handle READ_DISC_INFO */ + /* cannot handle READ_DISC_INFO */ \ + US_FLAG(NO_READ_CAPACITY_16, 0x00080000) \ + /* cannot handle READ_CAPACITY_16 */ #define US_FLAG(name, value) US_FL_##name = value , enum { US_DO_ALL_FLAGS }; -- 2.7.4