On Thu, 7 Mar 2002 15:59, Dmitri wrote: > Quoting Brad Hards <[EMAIL PROTECTED]>: > However bus-powered hub does not need to show 500 mA. Here is an example > of a *real* bus-powered hub (Atmel AT43301). This chip can not be even > programmed to change the reported value (and it does not support EEPROM): <snip> > C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 64mA <snip> Actually, this is correct. I was wrong. USB Spec (1.1 - 2.0 not handy) Sect11.13 states that "For bus-powered hubs, the reported value must not include the power for any of the external downstream ports". It then goes on to talk about special cases for compound devices.
Brad _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
