Re: [PATCH 1/9] platform/surface: Add Surface Aggregator subsystem

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On 11/19/20 4:54 PM, Barnabás Pőcze wrote:
Hi

[...]

+enum ssam_ssh_tc {
+	/* Known SSH/EC target categories. */
+				// category 0x00 is invalid for EC use
+	SSAM_SSH_TC_SAM = 0x01,	// generic system functionality, real-time clock
+	SSAM_SSH_TC_BAT = 0x02,	// battery/power subsystem
+	SSAM_SSH_TC_TMP = 0x03,	// thermal subsystem
+	SSAM_SSH_TC_PMC = 0x04,
+	SSAM_SSH_TC_FAN = 0x05,
+	SSAM_SSH_TC_PoM = 0x06,
+	SSAM_SSH_TC_DBG = 0x07,
+	SSAM_SSH_TC_KBD = 0x08,	// legacy keyboard (Laptop 1/2)
+	SSAM_SSH_TC_FWU = 0x09,
+	SSAM_SSH_TC_UNI = 0x0a,
+	SSAM_SSH_TC_LPC = 0x0b,
+	SSAM_SSH_TC_TCL = 0x0c,
+	SSAM_SSH_TC_SFL = 0x0d,
+	SSAM_SSH_TC_KIP = 0x0e,
+	SSAM_SSH_TC_EXT = 0x0f,
+	SSAM_SSH_TC_BLD = 0x10,
+	SSAM_SSH_TC_BAS = 0x11,	// detachment system (Surface Book 2/3)
+	SSAM_SSH_TC_SEN = 0x12,
+	SSAM_SSH_TC_SRQ = 0x13,
+	SSAM_SSH_TC_MCU = 0x14,
+	SSAM_SSH_TC_HID = 0x15,	// generic HID input subsystem
+	SSAM_SSH_TC_TCH = 0x16,
+	SSAM_SSH_TC_BKL = 0x17,
+	SSAM_SSH_TC_TAM = 0x18,
+	SSAM_SSH_TC_ACC = 0x19,
+	SSAM_SSH_TC_UFI = 0x1a,
+	SSAM_SSH_TC_USC = 0x1b,
+	SSAM_SSH_TC_PEN = 0x1c,
+	SSAM_SSH_TC_VID = 0x1d,
+	SSAM_SSH_TC_AUD = 0x1e,
+	SSAM_SSH_TC_SMC = 0x1f,
+	SSAM_SSH_TC_KPD = 0x20,
+	SSAM_SSH_TC_REG = 0x21,
+};

Is it known what these abbreviations stand for? Maybe I missed them?

The comments state all we really know about these (through observation
and experimentation). The table itself has been extracted from the
Windows driver, but the abbreviations and values are all we're getting
from it.

I see, thanks for the clarification. For some reason, I believed the
"Known SSH/EC target categories" comment means that those are known, as in,
it is known what they are for, etc., not just the abbreviation.

Right, that can be misunderstood, sorry. It's probably best if I add a
comment explaining that in a bit more detail and noting where those
values and abbreviations come from.

Thanks,
Max



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