diff options
Diffstat (limited to 'drivers/usb/storage/scsiglue.c')
| -rw-r--r-- | drivers/usb/storage/scsiglue.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 5715291..a4b7df9 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -112,13 +112,11 @@ static int slave_configure(struct scsi_device *sdev) if (sdev->scsi_level < SCSI_2) sdev->scsi_level = sdev->sdev_target->scsi_level = SCSI_2; - /* According to the technical support people at Genesys Logic, - * devices using their chips have problems transferring more than - * 32 KB at a time. In practice people have found that 64 KB - * works okay and that's what Windows does. But we'll be - * conservative; people can always use the sysfs interface to - * increase max_sectors. */ - if (le16_to_cpu(us->pusb_dev->descriptor.idVendor) == USB_VENDOR_ID_GENESYS && + /* Many devices have trouble transfering more than 32KB at a time, + * while others have trouble with more than 64K. At this time we + * are limiting both to 32K (64 sectores). + */ + if ((us->flags & US_FL_MAX_SECTORS_64) && sdev->request_queue->max_sectors > 64) blk_queue_max_sectors(sdev->request_queue, 64); |