Hi, My external disk uses an external box with a Initio Corporation INIC-1618L SATA chip. vendor/product are : 0x13fd/0x0840 bcdDevice is 1.14 making the disk work very slowly 12Mb in spite of 10 times faster. bcdUSB seem to be ok : 2.00 Tried this on 3.13 and 3.14-rc6 Note that same disk with other boxes works fine. Is there a module to load specifically. In my case usb-storage is loaded. Hope this is the right place to post this, I already tried on lkml list. Please cc me, I have not subscribed to the list. Here are some informations. I don't know if they are sufficient/pertinent. lsusb shows: Bus 002 Device 011: ID 13fd:0840 Initio Corporation INIC-1618L SATA Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x13fd Initio Corporation idProduct 0x0840 INIC-1618L SATA bcdDevice 1.14 iManufacturer 1 iProduct 2 iSerial 3 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 2mA 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 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 dmesg shows when disk is plugged in: [ 9295.428122] usb 2-1: new full-speed USB device number 6 using uhci_hcd [ 9295.572067] usb 2-1: not running at top speed; connect to a high speed hub [ 9295.600069] usb 2-1: New USB device found, idVendor=13fd, idProduct=0840 [ 9295.600081] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 9295.600086] usb 2-1: Product: External [ 9295.600090] usb 2-1: Manufacturer: Generic [ 9295.600094] usb 2-1: SerialNumber: 533134504A44305132353239 [ 9295.603150] usb-storage 2-1:1.0: USB Mass Storage device detected [ 9295.608156] scsi6 : usb-storage 2-1:1.0 [ 9296.613036] scsi 6:0:0:0: Direct-Access Generic External 1.14 PQ: 0 ANSI: 4 [ 9296.614845] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 9296.619005] sd 6:0:0:0: [sdb] 234441647 512-byte logical blocks: (120 GB/111 GiB) [ 9296.622005] sd 6:0:0:0: [sdb] Write Protect is off [ 9296.622013] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00 [ 9296.624986] sd 6:0:0:0: [sdb] No Caching mode page found [ 9296.624994] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 9296.636002] sd 6:0:0:0: [sdb] No Caching mode page found [ 9296.636074] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 9296.732999] sdb: sdb1 sdb2 [ 9296.747997] sd 6:0:0:0: [sdb] No Caching mode page found [ 9296.748052] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 9296.748061] sd 6:0:0:0: [sdb] Attached SCSI disk [ 9300.207477] EXT4-fs (sdb1): recovery complete [ 9300.207495] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null) -- 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
