RE: [PATCH 1/5] input: misc: AD714x: The interrupt status registers should be read in row.

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Dmitry Torokhov wrote on 2011-05-11:
> Hi Michael,
>
> On Tue, May 10, 2011 at 01:35:05PM +0200, michael.hennerich@xxxxxxxxxx
> wrote:
>>
>> +static int ad714x_i2c_read_seq(struct device *dev, unsigned short reg,
>> +                            unsigned short *data, unsigned len) { + struct i2c_client *client
>> = to_i2c_client(dev); +      int ret = 0, i; +       u8 *_reg = (u8 *)® + +      u8
>> tx[2] = { +          _reg[1], +              _reg[0] +       };
>
> Eww... I think this will also break on arches with different endianness.
> Can we pass the commands to be sent to the device as u8 array?
>

Hi Dmitry,

Right - this is not endianness save, like the rest of the driver.
I'll add a patch to the end of the sequence, which fixes both bus options.

For SPI - also need to force the bus to spi->bits_per_word = 8 (which is the default),
however some Blackfin boards set bits_per_word = 16, so we don't break them...

Greetings,
Michael

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