Brad Hards <[EMAIL PROTECTED]> writes: > * There is no requirement for a device to do high speed (or even full > speed) to be compatible with the USB 2.0 spec. USB 2.0 didn't add > to USB 1.1, it replaced it with a different design.
o Thanks for this explanation. After all the reading I've done, I was still fooled into thinking "USB 2.0 == high speed". Imagine what it's going to be like for the average consumer faced with misleading advertising/marketing/selling. > * There are some card reader designs (by Genesys, I think) that can > do high speed. What are the descriptors for your device? o Here's the /proc/bus/usb/devices entry: T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#= 16 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1 P: Vendor=04e6 ProdID=0325 Rev= 5.07 S: Manufacturer=SCM Microsystems Inc. S: Product=eUSB ORCA Quad Reader S: SerialNumber=000000000156 C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms o So ... does "Spd=12" means it's really just a full speed (not high speed) device, or is there any chance it's saying this because the hub, controller, and driver are all 1.1 and they don't know any better? -- MARK [EMAIL PROTECTED] ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
