linux-kernel - Re: [PATCH] usb: cdnsp: Fix wrong transmission direction of EP0

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Date:   Sat, 8 Oct 2022 17:40:04 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     3090101217@....edu.cn
Cc:     pawell@...ence.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jing Leng <jleng@...arella.com>
Subject: Re: [PATCH] usb: cdnsp: Fix wrong transmission direction of EP0

On Mon, Sep 26, 2022 at 03:59:02PM +0800, 3090101217@....edu.cn wrote:
> From: Jing Leng <jleng@...arella.com>
> 
> EP0 transfer is bi-directional, but in the cdnsp gadget, the
> transmission direction of EP0 is not changed after it is
> initialized to IN, so the OUT data from EP0 received by the host
> is invalid.
> 
> The value of ep0_expect_in will change according to the value of
> bRequestType in the SETUP transaction of control transfer, so we
> can use it as the transmission direction of EP0.
> 
> Signed-off-by: Jing Leng <jleng@...arella.com>

Your email does not match your From: line and the signature of it shows
that it is invalid and does not pass authentication :(

Please work with your university to get an email address that works
properly.

thanks,

greg k-h