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| author | Raul E Rangel <rrangel@chromium.org> | 2019-04-17 00:03:28 +0300 |
|---|---|---|
| committer | Enric Balletbo i Serra <enric.balletbo@collabora.com> | 2019-04-17 11:29:34 +0300 |
| commit | 58a2109f6eb46b2952e2ce3fe776ce02c0c540dd (patch) | |
| tree | 7d97942d8f269a70b31e2de50c3fbcfde824e721 /drivers/rtc | |
| parent | 81f6ec233355be6898d99add553d27e31b4b7cd7 (diff) | |
| download | linux-58a2109f6eb46b2952e2ce3fe776ce02c0c540dd.tar.xz | |
platform/chrome: cros_ec_proto: Add trace event to trace EC commands
This is useful to see which EC commands are being executed and when.
To enable:
echo 1 > /sys/kernel/debug/tracing/events/cros_ec/enable
Example:
cros_ec_cmd: version: 0, command: EC_CMD_GET_VERSION
cros_ec_cmd: version: 0, command: EC_CMD_GET_PROTOCOL_INFO
cros_ec_cmd: version: 1, command: EC_CMD_GET_CMD_VERSIONS
cros_ec_cmd: version: 1, command: EC_CMD_USB_PD_CONTROL
The list of current commands is generated using the following script:
sed -n 's/^#define \(EC_CMD_[[:alnum:]_]*\)\s.*/\tTRACE_SYMBOL(\1),\\/p' include/linux/mfd/cros_ec_commands.h
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-by: Ross Zwisler <zwisler@google.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Diffstat (limited to 'drivers/rtc')
0 files changed, 0 insertions, 0 deletions