On 3:38:53 pm 02/24/05 Lukas Hejtmanek <[EMAIL PROTECTED]> wrote: > This is another device (Card reader) supporting USB 2.0. > > In this case I used only uhci_hcd driver and it reports speed 12. > > T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=05dc ProdID=b018 Rev= 1.28 > S: Manufacturer=Lexar Media > S: Product=Multi-Card Reader > S: SerialNumber=0000246504 > C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA > 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 > > In this case I used both ehci_hcd and uhci_hcd drivers (ehci detected > device) and it reports speed 480. > > T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 > D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > P: Vendor=05dc ProdID=b018 Rev= 1.28 > S: Manufacturer=Lexar Media > S: Product=Multi-Card Reader > S: SerialNumber=0000246504 > C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA > 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= 512 Ivl=0ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms > > So for me it looks like it reports speed according to USB driver or > negotiated speed.
Same here with a new Seagate external USB 2.0 drive. If plugged into my laptop which does not have USB 2.0 it shows 12 in /dev/bus/usb/devices, however on a machine with USB 2.0 support it changes to 480. \__ Jason Munro \__ [EMAIL PROTECTED] \__ http://hastymail.sourceforge.net/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
