linux-kernel - Re: [PATCH V3 1/3] mtd: add new fields to nand_flash

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Message-ID: <CAMiH66ExMK8rPMw3kvs9M2b-0ZSkfxBYteTi8QTZf+XCzJw5Dw@mail.gmail.com>
Date:	Sat, 16 Feb 2013 11:56:09 +0800
From:	Huang Shijie <shijie8@...il.com>
To:	dedekind1@...il.com
Cc:	Huang Shijie <b32955@...escale.com>, dwmw2@...radead.org,
	computersforpeace@...il.com, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 1/3] mtd: add new fields to nand_flash_dev{}

On Tue, Feb 12, 2013 at 11:47 PM, Artem Bityutskiy <dedekind1@...il.com> wrote:
> On Mon, 2013-01-28 at 12:57 +0800, Huang Shijie wrote:
>> +       {"SmartMedia 256MiB 3,3V",      {0, 0x71}, 512, 256, 0x4000 },
>> +       {"SmartMedia 256MiB 3,3V ROM",  {0, 0x5b}, 512, 256, 0x4000,
>> NAND_ROM},
>
> Sorry for a possibly stupid question, but what does it buy you adding
> another "0" to all the entries? I see you add another table, which you
> look up if the "traditional" table does not work. Why you need to add
> these zeroes?

The zeros are for the maf_id.

The dev_id is the second byte of the 8-byte id data.

thanks
Huang Shijie


>
> --
> Best Regards,
> Artem Bityutskiy
>
> --
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