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Date: Sat, 5 Jul 2008 08:50:32 +0800
From: "Xiaofan Chen" <xiaofanc@gmail.com>
To: "Luigi Rizzo" <rizzo@icir.org>
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References: <20080703140719.GA72315@onelab2.iet.unipi.it>
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Cc: usb@freebsd.org, freebsd-current@freebsd.org, current@freebsd.org,
	Gary Jennejohn <gary.jennejohn@freenet.de>
Subject: Re: may I commit this small umodem patch ?
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On Sat, Jul 5, 2008 at 5:39 AM, Luigi Rizzo <rizzo@icir.org> wrote:
>> What about flow control? Is flow control required for these devices?
>
> the ones I am talking about don't implement any form of flow control.
> I suppose they would otherwise match the previous check.
>

They are many of this device and they do not have flow control.
I got two of them right here. One is for NXP LPC-P2148 and the other
is using Microchip PIC18F USB PICs.

Last time it was discussed here.
http://lists.freebsd.org/pipermail/freebsd-usb/2008-April/004907.html

I've tried the lpcusb based generic CDC-ACM device under
Linux/Windows/NetBSD successfully but not FreeBSD.

Xiaofan