iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iio: core: Introduce IIO_VAL_INT_64.

Browse Source 
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@opensynergy.com>
Link: https://lore.kernel.org/r/20211024091627.28031-2-andriy.tryshnivskyy@opensynergy.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andriy Tryshnivskyy 2021-10-24 12:16:26 +03:00 committed by Jonathan Cameron
parent 2c4ce5041c
commit 6bb835f3d0
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/iio/industrialio-core.c
View File

@ -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;
}

1
include/linux/iio/types.h
View File

@ -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