--- In Joel Morgan <> wrote:
>
> On 3/8/10, Jim Jackson <> wrote:
> >
> >
> >
> > On Mon, 8 Mar 2010, tsao.terence wrote:
> >
> >> Hi Linux masters,
> >>
> >> I am currently using the TS7260 USB port to power on my slave
> >> device(radio card). I will very like to the power off the USB when I am
> >> not talking to the slave device. After messing with Jim Jackson's cctl
> >> command line program, I couldnt quite get that to work, this is what I
> >> did:
> >>
> >> $cctl -w USB=off
> >> USB=off
> >>
> >> I still see USB port supply power to the slave device......
> >
> > Hi
> >
> > That only turns off the USB sub-system on the cpu chip, saving you a bit of
> > power consumption. I believe TS provide programmable control of the
> > 5V USB power on the TS7260, so it should be possible. However I don't have
> > a TS7260, so didn't add that to cctl.
> >
> > If someone lets me know the bit details, I could add it to cctl, but would
> > need someone with a ts7260 to do testing for me.
> >
> > Jim
> >
>
> power management register: 0x1200_0000
> USB 5V power: bit 1
>
>
> --
> Joel R. Morgan
> Morgan Millwright Services, Inc.
>
Ya, I saw that on the manual sheet too. How do I physically access that
register with command line? Should I just write a C program that handles that?
Will anyone provide me an example? :)
Thanks
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