On 16/01/2023 12:49, Mike Leach wrote:
Sysfs access to etm3x trace ID value is now read-only due to recent trace updates and for consistency with etm4x.
Signed-off-by: Mike Leach mike.leach@linaro.org
Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x index 651602a61eac..234c33fbdb55 100644 --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x @@ -236,7 +236,7 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/traceid Date: November 2014 KernelVersion: 3.19 Contact: Mathieu Poirier mathieu.poirier@linaro.org -Description: (RW) Holds the trace ID that will appear in the trace stream +Description: (RO) Holds the trace ID that will appear in the trace stream coming from this trace entity. What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/trigger_event
I have squashed this to PATCH 6, where the above sysfs file permission is actually changed.
Thanks Suzuki