RE: [PATCH 2/2] iio: accel: Add triggered buffer support for BMA220

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> -----Original Message-----
> From: linux-iio-owner@xxxxxxxxxxxxxxx [mailto:linux-iio-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Peter Meerwald-Stadler
> Sent: Friday, April 29, 2016 2:25 PM
> To: Breana, Tiberiu A <tiberiu.a.breana@xxxxxxxxx>
> Cc: linux-iio@xxxxxxxxxxxxxxx; Jonathan Cameron <jic23@xxxxxxxxxx>
> Subject: Re: [PATCH 2/2] iio: accel: Add triggered buffer support for BMA220
> 
> 
> > Signed-off-by: Tiberiu Breana <tiberiu.a.breana@xxxxxxxxx>
> 
> comments below
> 
> > ---
> >  drivers/iio/accel/bma220_spi.c | 67
> > ++++++++++++++++++++++++++++++++++++++++--
> >  1 file changed, 65 insertions(+), 2 deletions(-)
> >

<snip>

> > -70,6 +84,42 @@ static inline int bma220_read_reg(struct spi_device *spi,
> u8 reg)
> >  	return spi_w8r8(spi, reg | BMA220_READ_MASK);  }
> >
> > +static irqreturn_t bma220_trigger_handler(int irq, void *p) {
> > +	int i;
> > +	int ret;
> > +	int bit;
> > +	struct iio_poll_func *pf = p;
> > +	struct iio_dev *indio_dev = pf->indio_dev;
> > +	struct bma220_data *data = iio_priv(indio_dev);
> > +	struct spi_device *spi = data->spi_device;
> > +	u8 tx_buf = BMA220_REG_ACCEL_X | BMA220_READ_MASK;
> > +	u8 rx_buf[3];
> 
> alignment requirements for SPI?

I'm not sure what you mean by this. The chip seems to respond correctly
to the testing I've done so far.

Tiberiu
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