Subject: Re: [linux-usb-devel] hub.c port power handling on over-current
On Friday 25 May 2007, Engelmayer Christian wrote:
Hi all,
If I am not mistaken the current policy is to leave port power
enabled at all times during over-current situations and let
the power provider handle current
On Tuesday 29 May 2007, Engelmayer Christian wrote:
To answer Your questions:
*) the affected hub does report per port power switching correctly
*) whether it is an erratum or design I can tell You in case I get
a clear answer on that point.
The following patch works well for my
On Fri, 25 May 2007, David Brownell wrote:
I'd have to check, but I think that Linux won't currently turn
off per-port power unless the host controller reports that it
actually supports per-port power switching. And most EHCI
implementations don't report that in the hardware, so Linux
won't
Von: Alan Stern
Gesendet: Sa 26.05.2007 17:48
An: David Brownell; Engelmayer Christian
Cc: USB development list
Betreff: Re: [linux-usb-devel] hub.c port power handling on over-current
On Fri, 25 May 2007, David Brownell wrote:
I'd have to check, but I think that Linux won't currently turn
off
Hi all,
If I am not mistaken the current policy is to leave port power
enabled at all times during over-current situations and let
the power provider handle current limitation.
I experienced problems with the EHCI on an MPC8343E, which
after some over-current situations no longer asserts the
On Friday 25 May 2007, Engelmayer Christian wrote:
Hi all,
If I am not mistaken the current policy is to leave port power
enabled at all times during over-current situations and let
the power provider handle current limitation.
More accurately: let the hub handle it. And ISTR that the
hub
