Re: [Help 2/2] MUSB: some USB card readers, USB-IDE cable, 30G old iPod will be reset several times in usb-storage transcation

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>  > My patch is simply skip to start 2cn CSW operation as below:
>  > --
>  > Index: drivers/usb/storage/transport.c
>  > ===================================================================
>  > --- drivers/usb/storage/transport.c   (revision 4075)
>  > +++ drivers/usb/storage/transport.c   (working copy)
>  > @@ -1034,9 +1034,11 @@ int usb_stor_Bulk_transport(struct scsi_
>  >
>  >               /* get the status again */
>  >               US_DEBUGP("Attempting to get CSW (2nd try)...\n");
>  > -             result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
>  > +             bcs->Status = US_BULK_STAT_OK;
>  > +             goto bcs_status;
>  > +/*           result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe,
>  >                               bcs, US_BULK_CS_WRAP_LEN, NULL);
>  > -     }
>  > +*/   }
>
>  maybe this command triggers a current spike on the zio reader which is
>  causing the
>  vbus drop ? could be...
>

Oh, no. this issue was found in some USB-IDE cable, USB SD card reader
and 30G iPod, not in ZiO reader.

The code of the packet which triggered the ZiO issue was included in
the ZiO email.

-Bryan
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