修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
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@@ -9,10 +9,13 @@
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 KernelVersion:	4.3
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 Contact:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
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 Description:	(RW) Configure MSC operating mode:
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+
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 		  - "single", for contiguous buffer mode (high-order alloc);
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 		  - "multi", for multiblock mode;
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 		  - "ExI", for DCI handler mode;
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-		  - "debug", for debug mode.
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+		  - "debug", for debug mode;
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+		  - any of the currently loaded buffer sinks.
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+
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 		If operating mode changes, existing buffer is deallocated,
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 		provided there are no active users and tracing is not enabled,
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 		otherwise the write will fail.
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@@ -22,12 +25,30 @@
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 KernelVersion:	4.3
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 Contact:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
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 Description:	(RW) Configure MSC buffer size for "single" or "multi" modes.
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 		In single mode, this is a single number of pages, has to be
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 		power of 2. In multiblock mode, this is a comma-separated list
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 		of numbers of pages for each window to be allocated. Number of
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 		windows is not limited.
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 		Writing to this file deallocates existing buffer (provided
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 		there are no active users and tracing is not enabled) and then
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 		allocates a new one.
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+What:		/sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/win_switch
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+Date:		May 2019
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+KernelVersion:	5.2
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+Contact:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
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+Description:	(RW) Trigger window switch for the MSC's buffer, in
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+		multi-window mode. In "multi" mode, accepts writes of "1", thereby
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+		triggering a window switch for the buffer. Returns an error in any
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+		other operating mode or attempts to write something other than "1".
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+
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+What:		/sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/stop_on_full
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+Date:		March 2020
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+KernelVersion:	5.7
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+Contact:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
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+Description:	(RW) Configure whether trace stops when the last available window
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+		becomes full (1/y/Y) or wraps around and continues until the next
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+		window becomes available again (0/n/N).
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