diff options
Diffstat (limited to 'drivers/staging/iio/accel/sca3000_ring.c')
| -rw-r--r-- | drivers/staging/iio/accel/sca3000_ring.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c index a704c75fffc2..0b736dbe818c 100644 --- a/drivers/staging/iio/accel/sca3000_ring.c +++ b/drivers/staging/iio/accel/sca3000_ring.c @@ -10,9 +10,7 @@ */ #include <linux/interrupt.h> -#include <linux/gpio.h> #include <linux/fs.h> -#include <linux/device.h> #include <linux/slab.h> #include <linux/kernel.h> #include <linux/spi/spi.h> @@ -24,7 +22,6 @@ #include "../sysfs.h" #include "../ring_generic.h" #include "../ring_hw.h" -#include "accel.h" #include "sca3000.h" /* RFC / future work @@ -226,74 +223,6 @@ static IIO_DEVICE_ATTR(75_percent, S_IRUGO | S_IWUSR, sca3000_set_ring_int, SCA3000_INT_MASK_RING_THREE_QUARTER); - -/** - * sca3000_show_ring_bpse() -sysfs function to query bits per sample from ring - * @dev: ring buffer device - * @attr: this device attribute - * @buf: buffer to write to - **/ -static ssize_t sca3000_show_ring_bpse(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - int len = 0, ret; - struct iio_ring_buffer *ring = dev_get_drvdata(dev); - struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = iio_priv(indio_dev); - - mutex_lock(&st->lock); - ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); - if (ret) - goto error_ret; - if (st->rx[0] & SCA3000_RING_BUF_8BIT) - len = sprintf(buf, "s8/8\n"); - else - len = sprintf(buf, "s11/16\n"); -error_ret: - mutex_unlock(&st->lock); - - return ret ? ret : len; -} - -/** - * sca3000_store_ring_bpse() - bits per scan element - * @dev: ring buffer device - * @attr: attribute called from - * @buf: input from userspace - * @len: length of input - **/ -static ssize_t sca3000_store_ring_bpse(struct device *dev, - struct device_attribute *attr, - const char *buf, - size_t len) -{ - struct iio_ring_buffer *ring = dev_get_drvdata(dev); - struct iio_dev *indio_dev = ring->indio_dev; - struct sca3000_state *st = iio_priv(indio_dev); - int ret; - - mutex_lock(&st->lock); - - ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1); - if (ret) - goto error_ret; - if (sysfs_streq(buf, "s8/8")) { - ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, - st->rx[0] | SCA3000_RING_BUF_8BIT); - st->bpse = 8; - } else if (sysfs_streq(buf, "s11/16")) { - ret = sca3000_write_reg(st, SCA3000_REG_ADDR_MODE, - st->rx[0] & ~SCA3000_RING_BUF_8BIT); - st->bpse = 11; - } else - ret = -EINVAL; -error_ret: - mutex_unlock(&st->lock); - - return ret ? ret : len; -} - static ssize_t sca3000_show_buffer_scale(struct device *dev, struct device_attribute *attr, char *buf) |