Re: [Uclinux-dist-devel] [PATCH 3/9] USB: musb: add disable ping option to support some ill-behaviored usb stick

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On Wed, Jun 3, 2009 at 10:04, Alan Stern wrote:
> On Wed, 3 Jun 2009, Mike Frysinger wrote:
>> From: Bryan Wu <cooloney@xxxxxxxxxx>
>> Some USB stick does not answer PING correctly which will make USB enumeration fail.
>> We enable the NAK limit value to detect this PING issue, then disable the PING option
>> for such ill-behaviored usb sticks.
>
> Do these ill-behaved sticks work with a regular EHCI controller?  If
> not then there's no reason to add special code to support them on MUSB.
> If they do work then MUSB should behave the same way as EHCI, which
> doesn't use the NAK limit value or disable PING.

we'll try and document examples of crappy sticks and check on a
regular EHCI controller
-mike
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