Re: [usb-storage] Re: External USB3 disk fails with "Invalid field in cdb"

[James Bottomley <James.Bottomley@HansenPartnership.com>]

On Fri, 2014-06-27 at 15:23 -0400, Alan Stern wrote:
> On Fri, 27 Jun 2014, Michael Büsch wrote:
> 
> > On Fri, 27 Jun 2014 14:42:01 -0400 (EDT)
> > Alan Stern <stern@rowland.harvard.edu> wrote:
> > 
> > > Michael, can you post the "lsusb -v" output for this device?  I see it 
> > > is made by JMicron; they are notorious for buggy USB-ATA bridges.
> > 
> > Of course. Here you go:
> > 
> > Bus 004 Device 009: ID 152d:0567 JMicron Technology Corp. / JMicron USA Technology Corp. 
> > Device Descriptor:
> >   bLength                18
> >   bDescriptorType         1
> >   bcdUSB               3.00
> >   bDeviceClass            0 (Defined at Interface level)
> >   bDeviceSubClass         0 
> >   bDeviceProtocol         0 
> >   bMaxPacketSize0         9
> >   idVendor           0x152d JMicron Technology Corp. / JMicron USA Technology Corp.
> >   idProduct          0x0567 
> >   bcdDevice            1.14
> >   iManufacturer           1 JMicron
> >   iProduct                2 USB to ATA/ATAPI Bridge
> >   iSerial                 3 xxx
> >   bNumConfigurations      1
> >   Configuration Descriptor:
> >     bLength                 9
> >     bDescriptorType         2
> >     wTotalLength          121
> >     bNumInterfaces          1
> >     bConfigurationValue     1
> >     iConfiguration          4 USB Mass Storage
> >     bmAttributes         0xc0
> >       Self Powered
> >     MaxPower                2mA
> ...
> 
> > MaxPower=2mA is a nice guess for a hard disk. ;)
> 
> That refers to the amount of power the device draws from the USB bus.  
> Since the disk drive is self-powered, it doesn't use much bus power.
> 
> Does the patch below do what you and James want?

Yes, that's the usual annoying additions to our blacklist.  You can add
my acked-by and could you cc stable?

Thanks,

James



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