linux-kernel - Re: [PATCH 2/4] usb: gadget: f_midi: defaults buflen sizes to 512

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Date:	Wed, 10 Aug 2016 14:25:52 +0300
From:	Felipe Balbi <balbi@...nel.org>
To:	"Felipe F. Tonello" <eu@...ipetonello.com>,
	linux-usb@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] usb: gadget: f_midi: defaults buflen sizes to 512


Hi,

"Felipe F. Tonello" <eu@...ipetonello.com> writes:
> 512 is the value used by wMaxPacketSize, as specified by the USB Spec. This

this is only true for HS :-) FS and SS use different sizes. Do you want
to use 1024 (SS maxp) by default instead? Then all speeds will have this
working out just fine.

-- 
balbi

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