linux-kernel - Re: [PATCH] usb: musb: core: Disable the Interrupts till BABBLE is fully handled

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Message-ID: <20141124203908.4425.qmail@stuge.se>
Date:	Mon, 24 Nov 2014 21:39:08 +0100
From:	Peter Stuge <peter@...ge.se>
To:	Felipe Balbi <balbi@...com>
Cc:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	George Cherian <george.cherian@...com>,
	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: musb: core: Disable the Interrupts till BABBLE is
	fully handled

Felipe Balbi wrote:
> > > A babble only occurs when
> > > the device side tries to move data without the host asking for anything.
> > 
> > It also occurs if the device moves more than packet_size bytes. Not
> > really helping, I know…
> 
> hmm, why would the device move more than wMaxPacketSize at a time ?

Some devices are buggy.


> That's certainly babble :-)

Certainly! But musb shouldn't fall over or lock up because of it, should it?


//Peter

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