Re: i.MX31 usb device support and power supply

On 3/6/07, Valentin Longchamp <[email protected]> wrote:
> Alan Stern wrote:
> > > Ok. So the hub code rejects a device needing 150 mA (which resluts in
> > > 300) althoug the MIC2536 is able to provide 150 mA. For me it rejects a
> > > configuration that should be accepted, doestn't it ?
> >
> > No, no.  If c->desc.bMaxPower == 150 then the device really needs 300 mA.
> > Remember, the value in the descriptor is given in units of 2 mA.  (That's
> > how it manages to pack values ranging up to 500 in a single byte.)  So the
> > driver is rejecting a configuration which should be rejected.
> >
>
> Oh, I was missing the fact that the unit for these values are 2 mA (and not 1
> mA).

I have five various 802.11 dongles and they all need 300mA.

>
> Thank you
>
> Valentin
>
>
>
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-- 
Jon Smirl
[email protected]

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