[PATCH v6 3/6] Documentation: Add ABI doc for attributes of LJCA device

Ye Xiang
2023-03-23T17:21:43Z

Add sysfs attributes Documentation entries for LJCA device

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
---
.../ABI/testing/sysfs-bus-usb-devices-ljca | 36 +++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-usb-devices-ljca

diff --git a/Documentation/ABI/testing/sysfs-bus-usb-devices-ljca b/Documentation/ABI/testing/sysfs-bus-usb-devices-ljca
new file mode 100644
index 000000000000..16eecaf870e2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-usb-devices-ljca
@@ -0,0 +1,36 @@
+What: /sys/bus/usb/.../ljca_version
+Date: July 2023
+KernelVersion: 6.4
+Contact: Ye Xiang <xiang.ye@intel.com>
+Description:
+ Provides the current firmware version of LJCA device.
+ The format is Major.Minor.Patch.Build, where
+ Major, Minor, Patch, and Build are decimal numbers.
+ For example: 1.0.0.256
+
+What: /sys/bus/usb/.../ljca_enable_dfu
+Date: July 2023
+KernelVersion: 6.4
+Contact: Ye Xiang <xiang.ye@intel.com>
+Description:
+ Writing 1 to this file to force the LJCA device into DFU
+ mode so the firmware can be updated. After firmware
+ updating has been done, the device will back to normal
+ working mode.
+
+What: /sys/bus/usb/.../ljca_trace_level
+Date: July 2023
+KernelVersion: 6.4
+Contact: Ye Xiang <xiang.ye@intel.com>
+Description:
+ Writing N to this file to set firmware log level of LJCA
+ device. The log can be printed to another computer through
+ UART ports in LJCA device. Valid values:
+
+ == ==========
+ 0 LEVEL_ERROR
+ 1 LEVEL_WARNING
+ 2 LEVEL_INFO
+ 3 LEVEL_DEBUG
+ 4 LEVEL_OFF
+ == ==========
--
2.34.1