linux-kernel - Re: [PATCH/RFC 5/5] usb: Add support for streams alloc/dealloc to devio.c

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Message-Id: <201107191118.48536.oneukum@suse.de>
Date:	Tue, 19 Jul 2011 11:18:48 +0200
From:	Oliver Neukum <oneukum@...e.de>
To:	"Amit Blay" <ablay@...eaurora.org>
Cc:	"Sarah Sharp" <sarah.a.sharp@...ux.intel.com>,
	"Tatyana Brokhman" <tlinder@...eaurora.org>, greg@...ah.com,
	linux-usb@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	balbi@...com, "Amit Blay" <ablay@...lcomm.com>,
	"open list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH/RFC 5/5] usb: Add support for streams alloc/dealloc to devio.c

Am Dienstag, 19. Juli 2011, 11:12:39 schrieb Amit Blay:

> > So it seems like you also need a way for userspace to specify which
> > endpoints get streams, and which endpoints have streams freed.  I will
> 
> What I have in mind is user space passing a structure holding:
> 
> 1. Interface number [IN]
> 2. Bitmap indicating which EP to allocate streams for [IN]

If this is a bitmap,

> 3. Number of streams to allocate, one number [IN}
> 4. Number of streams actually allocated, one number  [OUT]

how can those be scalars? 

	Regards
		Oliver
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