Date: Wed, 5 Nov 2014 18:11:03 +0100
From: Johan Hovold <johan@kernel.org>
To: Octavian Purdila <octavian.purdila@intel.com>
Cc: gregkh@linuxfoundation.org, linus.walleij@linaro.org, gnurou@gmail.com,
        wsa@the-dreams.de, sameo@linux.intel.com, lee.jones@linaro.org,
        arnd@arndb.de, johan@kernel.org, daniel.baluta@intel.com,
        laurentiu.palcu@intel.com, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org,
        linux-i2c@vger.kernel.org
Subject: Re: [PATCH v10 1/3] mfd: add support for Diolan DLN-2 devices
Message-ID: <20141105171103.GA21212@localhost>
References: <1415207101-16461-1-git-send-email-octavian.purdila@intel.com>
 <1415207101-16461-2-git-send-email-octavian.purdila@intel.com>
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On Wed, Nov 05, 2014 at 07:04:59PM +0200, Octavian Purdila wrote:
> This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
> Master Adapter DLN-2. Details about the device can be found here:
> 
> https://www.diolan.com/i2c/i2c_interface.html.
> 
> Information about the USB protocol can be found in the Programmer's
> Reference Manual [1], see section 1.7.
> 
> Because the hardware has a single transmit endpoint and a single
> receive endpoint the communication between the various DLN2 drivers
> and the hardware will be muxed/demuxed by this driver.
> 
> Each DLN2 module will be identified by the handle field within the DLN2
> message header. If a DLN2 module issues multiple commands in parallel
> they will be identified by the echo counter field in the message header.
> 
> The DLN2 modules can use the dln2_transfer() function to issue a
> command and wait for its response. They can also register a callback
> that is going to be called when a specific event id is generated by
> the device (e.g. GPIO interrupts). The device uses handle 0 for
> sending events.
> 
> [1] https://www.diolan.com/downloads/dln-api-manual.pdf
> 
> Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>

Reviewed-by: Johan Hovold <johan@kernel.org>

Just noticed checkpatch complains about two typos in the header file
(since v9?). ;)

Thanks,
Johan
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