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[ts-7000] Re: USB initialization hangs (kernel 2.4.26-ts11)

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Subject: [ts-7000] Re: USB initialization hangs (kernel 2.4.26-ts11)
From: "Jesse Off" <>
Date: Thu, 28 Sep 2006 16:13:43 -0000
--- In  Marco Pracucci <> wrote:
>
> Hi,
> 
> I sometimes experience a problem on TS-7200 and TS-7250 with kernel
> 2.4.26-ts11: USB devices initialization hangs the system during 
kernel boot.

You may be overextending your power supply, what are you using for 5V 
power?  USB devices are only allowed to use so much power before they 
are turned "on" by software during bus enumeration.  When the USB 
stack starts enabling devices, it is conceivable that your power 
supply may dip and cause the board to get stuck in reset from the 
voltage brownout detector.  Anything else you can tell us about the 
state of the board in "lock-up" -- LEDS, current draw, voltage across 
+/- power terminals, etc?

> I have discovered that there is an "old" (2004) NetBSD
> ep93xx-patch that seems fix this bug... but I haven't found nothing
> similar for Linux.

I'm not sure what patch you might be referring to, could you elaborate?

//Jesse Off






 
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