linux-kernel - Re: [PATCH 10/10] iio: imu: kmx61: Use correct base when reading data

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Date:	Thu, 01 Jan 2015 14:54:20 +0100
From:	Hartmut Knaack <knaack.h@....de>
To:	Daniel Baluta <daniel.baluta@...el.com>, jic23@...nel.org
CC:	lars@...afoo.de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org, srinivas.pandruvada@...ux.intel.com
Subject: Re: [PATCH 10/10] iio: imu: kmx61: Use correct base when reading data

Daniel Baluta schrieb am 23.12.2014 um 14:22:
> We have two IIO devices and we need to adjust the base
> when reading data.
> 
> Signed-off-by: Daniel Baluta <daniel.baluta@...el.com>
Reviewed-by: Hartmut Knaack <knaack.h@....de>
> ---
>  drivers/iio/imu/kmx61.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
> index 98369eb..6178cea 100644
> --- a/drivers/iio/imu/kmx61.c
> +++ b/drivers/iio/imu/kmx61.c
> @@ -1210,12 +1210,18 @@ static irqreturn_t kmx61_trigger_handler(int irq, void *p)
>  	struct iio_dev *indio_dev = pf->indio_dev;
>  	struct kmx61_data *data = kmx61_get_data(indio_dev);
>  	int bit, ret, i = 0;
> +	u8 base;
>  	s16 buffer[8];
>  
> +	if (indio_dev == data->acc_indio_dev)
> +		base = KMX61_ACC_XOUT_L;
> +	else
> +		base = KMX61_MAG_XOUT_L;
> +
>  	mutex_lock(&data->lock);
>  	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
>  			 indio_dev->masklength) {
> -		ret = kmx61_read_measurement(data, KMX61_ACC_XOUT_L, bit);
> +		ret = kmx61_read_measurement(data, base, bit);
>  		if (ret < 0) {
>  			mutex_unlock(&data->lock);
>  			goto err;
> 

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