Modified: trunk/drivers/staging/iio/adc/ad7416.c (8454 => 8455)
--- trunk/drivers/staging/iio/adc/ad7416.c 2010-03-12 06:18:55 UTC (rev 8454)
+++ trunk/drivers/staging/iio/adc/ad7416.c 2010-03-12 06:20:13 UTC (rev 8455)
@@ -53,6 +53,7 @@
*/
#define AD7416_VALUE_MASK 0xFFC0
#define AD7416_VALUE_OFFSET 6
+#define AD7416_TEMP_OFFSET 7
/*
@@ -245,7 +246,7 @@
value = (s16)be16_to_cpu(data);
value >>= AD7416_VALUE_OFFSET;
- return sprintf(buf, "%d.%d\n", (value >> 2),
+ return sprintf(buf, "%d.%.2d\n", (value >> 2),
(value & 3) * 25);
} else {
ret = ad7416_i2c_read(chip, AD7416_ADC_VALUE, (u8 *)&data);
@@ -427,14 +428,14 @@
{
struct iio_dev *dev_info = dev_get_drvdata(dev);
struct ad7416_chip_info *chip = dev_info->dev_data;
- char value;
+ s8 value;
int ret;
ret = ad7416_i2c_read(chip, bound_reg, &value);
if (ret)
return -EIO;
- return sprintf(buf, "%d\n", value);
+ return sprintf(buf, "%d\n", value >> (AD7416_TEMP_OFFSET + 1));
}
static inline ssize_t ad7416_set_t_bound(struct device *dev,
@@ -445,15 +446,18 @@
{
struct iio_dev *dev_info = dev_get_drvdata(dev);
struct ad7416_chip_info *chip = dev_info->dev_data;
- unsigned long data;
+ long value;
+ s16 data;
int ret;
- ret = strict_strtoul(buf, 10, &data);
+ ret = strict_strtol(buf, 10, &value);
- if (ret)
+ if (ret || value > 127 || value < -128)
return -EINVAL;
+ value <<= (AD7416_TEMP_OFFSET + 1);
+ data = ""
- ret = ad7416_i2c_write(chip, bound_reg, (s8)data);
+ ret = ad7416_i2c_write(chip, bound_reg, (u8)data);
if (ret)
return -EIO;
