On Mon, 22 Sep 2014 10:17:02 -0400 (EDT) Alan Stern <st...@rowland.harvard.edu> wrote:
> On Mon, 22 Sep 2014, Mark wrote: > > > When using an SCM-based USB-SCSI converter, access to target 7 is attempted > > after scanning targets 0 to 6 during the bus scan. The SCSI ID of the > > converter is hard-wired to 7 so there will never be a target there. I'm > > proposing a small patch to usb_stor_probe2() so target 7 is not accessed; > > see below. > > ... > > In usb_stor_probe2() there is: > > if (!(us->fflags & US_FL_SCM_MULT_TARG)) > > us_to_host(us)->max_id = 1; > > > > Change that to: > > us_to_host(us)->max_id = (us->fflags & US_FL_SCM_MULT_TARG) ? 7 : 1; > > > > Is that enough? > > Try it and see. I compiled a kernel with that change and it did solve the problem. Obviously it wasn't a very big problem, but the bus scan should be about 1/3 second faster now. Mark -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
