Introduce IIO_VAL_INT_64 to read 64-bit value for
channel attribute. Val is used as lower 32 bits.
Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@xxxxxxxxxxxxxxx>
---
drivers/iio/industrialio-core.c | 3 +++
include/linux/iio/types.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 6d2175eb7af2..49e42d04ea16 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -702,6 +702,9 @@ static ssize_t __iio_format_value(char *buf, size_t offset, unsigned int type,
}
case IIO_VAL_CHAR:
return sysfs_emit_at(buf, offset, "%c", (char)vals[0]);
+ case IIO_VAL_INT_64:
+ tmp2 = (s64)((((u64)vals[1]) << 32) | (u32)vals[0]);
+ return sysfs_emit_at(buf, offset, "%lld", tmp2);
default:
return 0;
}
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 84b3f8175cc6..bb6578a5ee28 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -24,6 +24,7 @@ enum iio_event_info {
#define IIO_VAL_INT_PLUS_NANO 3
#define IIO_VAL_INT_PLUS_MICRO_DB 4
#define IIO_VAL_INT_MULTIPLE 5
+#define IIO_VAL_INT_64 6 /* 64-bit data, val is lower 32 bits) */
#define IIO_VAL_FRACTIONAL 10
#define IIO_VAL_FRACTIONAL_LOG2 11
#define IIO_VAL_CHAR 12
--
2.17.1
