The Thu, 3 Mar 2005 22:50:34 +0100 "Gerd v. Egidy" <[EMAIL PROTECTED]> wrote:
> Hi Samuel, > Hello, > as you might have seen on this list (subject: "usb-storage: speed > inconsistent, disconnect, oops") I have problems with my usb frame too. I > get a lot of usb resets during the transfer and a disconnect after some > time. > Yes, I just took a look at the thread. > Alan was so kind to point me to the patch you used (and some more). > Yes, he's just a so helpful person :-) > But that didn't help. > I may test those patches, but it wouldn't make much sense for me. Still if a developer want me to try, I can do it. > So I was very excited about your findings and put a hub between the drive > and the usb card. But it didn't work for me. I still get resets and a > disconnect after some time. > I remember I had read some messages when it was advised to test with an additional hub. I guess I was lucky to remember it. It might be that the hub helps in some way the synchronisation somewhere in the transfers... > What chipset does your usb-ide converter use? My usb frame uses a chip > from cypress, but I tried another one from genesys and that got the > problems too. > The usb drive is a : http://www.lacie.com/products/product.htm?pid=10396 I now that the inner disk is a samsung : Vendor: SAMSUNG Model: MP0402H Rev: UC10 Type: Direct-Access ANSI SCSI revision: 02 But I don't know much about the usb-to-ide converter. Btw, I had reported the problems to LaCie (the scsi revision 4 problem, and a possible problem for this disk), still no answer. Here is a cat /proc/bus/usb/devices : T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#= 9 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=059f ProdID=0341 Rev= 0.00 S: Manufacturer=LaCie S: Product=LaCie Hard Drive USB S: SerialNumber=10000E000945191B C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms The usb chipset of the machine is a VIA USB2.0. The thing (as I tell in my message) is that the hard disk works well with another usb2 machine. For me the problem is located somewhere in the USB2 chipset of the machine, which would not come as a surprise, as it was reported that via usb2 chipset were sometimes problematic... The usb hub I used is : Bus 001 Device 010: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 USB-2.0 "TetraHub" Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x04b4 Cypress Semiconductor Corp. idProduct 0x6560 CY7C65640 USB-2.0 "TetraHub" bcdDevice 0.08 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0001 1x 1 bytes bInterval 255 Hmmm, if it can help you with your problem, I will do some tests tomorrow and put more verbose logs. Now it's rather time to go to sleep :-P. Regards, Samuel. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
