On Thu, Aug 15, 2013 at 10:33:42PM +0200, Hans de Goede wrote: > Hi, > > On 08/15/2013 12:42 PM, Hans de Goede wrote: > > <snip> > > >>What device did you find? I have yet to see a shipping device with > >>streams... > > > >I don't know about streams, I'm hoping that having a uasp device means it will > >also use streams. So far I've been unable to get my hands on anything doing uasp, > >but it seems the tide is turning and now I've found multiple. Now lets hope that: > >1) They really support uasp 2) they use streams (not sure if that is optional > >or mandatory with uasp). > > > >This is the one I've ordered: > > > >http://www.amazon.co.uk/Anker%C2%AE-Uspeed-Enclosure-2-5-Inch-Support/dp/B005B5NLZ0/ > > Correction, this one just arrived today and it despite its product > description claiming it does, it does *not* support uasp. > > > > >This one also looks nice, and plugable is known to be a Linux friendly company, > >and they should be available in the US: > > > >http://www.amazon.co.uk/Plugable-Lay-Flat-Docking-Station-ASM1053E/dp/B00D399JU2 > > I've ordered this one now ... I just ordered that one as well, and it looks like it doesn't have UAS exposed, even though the descriptors mention it: Bus 004 Device 005: ID 174c:55aa ASMedia Technology Inc. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 9 idVendor 0x174c ASMedia Technology Inc. idProduct 0x55aa bcdDevice 1.00 iManufacturer 2 ASM1053E iProduct 3 Plugable USB3-SATA-UASP1 iSerial 1 123456789045 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 44 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 36mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 Binary Object Store Descriptor: bLength 5 bDescriptorType 15 wTotalLength 22 bNumDeviceCaps 2 USB 2.0 Extension Device Capability: bLength 7 bDescriptorType 16 bDevCapabilityType 2 bmAttributes 0x00000002 Link Power Management (LPM) Supported SuperSpeed USB Device Capability: bLength 10 bDescriptorType 16 bDevCapabilityType 3 bmAttributes 0x00 Latency Tolerance Messages (LTM) Supported wSpeedsSupported 0x000e Device can operate at Full Speed (12Mbps) Device can operate at High Speed (480Mbps) Device can operate at SuperSpeed (5Gbps) bFunctionalitySupport 1 Lowest fully-functional device speed is Full Speed (12Mbps) bU1DevExitLat 10 micro seconds bU2DevExitLat 2047 micro seconds Device Status: 0x0001 Self Powered I wonder if this needs a vendor specific command to disconnect and reconnect in UAS mode? Or perhaps a firmware blob? I'll have to connect it under Windows with a USB bus analyzer and see what the driver does. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
