Re: Unsupported device message, Compliance C.2, part 4

Hi,

On 10/10/07, Aras Vaichas <[email protected]> wrote:
> Felipe Balbi wrote:
> > Hi all,
> >
> > On 10/10/07, Aras Vaichas <[email protected]> wrote:
> >> Alan Stern wrote:
> >>> On Tue, 9 Oct 2007, Aras Vaichas wrote:
> >>>
> >>>> I just discovered that not all devices create a "product" file when inserted,
> >>>> so I've changed the script to look for a symbolic link to the device driver.
> >>>> AFAIK, an unknown device will not have this link (please correct me if I am wrong).
> >
> > This discussion looks kinda useless to me.
> > No silent error requirement is just for OTG devices.
>
> Sorry, but it applies to both Embedded Host and OTG.
>
> See "EH Compliance Plan v1.0"
> http://www.usb.org/developers/docs/EH_Compliance_v1_0.pdf, section A.3
>
> "13. The USB On-The-Go Supplement introduces the concept of the "No Silent
> Failures".[OTG:3:4] The concept of "No Silent Failures" shall apply to any host
> regardless of whether it is OTG or embedded."
>
>
> > I actually have some patches from me and other contributors
> > implementing such messaging support through sysfs.
> >
> > And it looks really good.
> >
> > Such patch series also initialize otg targeted peripheral list (aka
> > whitelist) through board*.c files and implement some sort of dynamic
> > OTG TPL.
> >
> > It's  not sent yet cuz there's also some implementation regarding vbus
> > error messaging that is done only for musb driver which is only in
> > linux-omap tree yet.
> >
> > Maybe in a couple of weeks I'll have everything done and I'll be able
> > to share such work.
>
> Is it just for OTG? will it work the same for embedded host?

Changing some small stuff... yeah...

>
> Aras
>
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-- 
Best Regards,

Felipe Balbi
[email protected]

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