[ltp] [PATCH] ibm_acpi - Allow fan to be set to full speed

[Thomas Renninger]

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echo full-speed >/proc/acpi/ibm/fan
sets the speed to max for most Thinkpads.

      Thomas

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--- drivers/acpi/ibm_acpi.c.orig	2005-08-20 19:42:16.000000000 -0600
+++ drivers/acpi/ibm_acpi.c	2005-08-20 19:42:48.000000000 -0600
@@ -1507,7 +1507,7 @@
 			       " (<level> is 0-7)\n");
 	if (!gfan_handle)
 		/* all except 570, 600e/x, 770e, 770x */
-		len += sprintf(p + len, "commands:\tenable, disable\n");
+		len += sprintf(p + len, "commands:\tenable, disable, full-speed\n");
 	if (fans_handle)
 		/* X31, X40 */
 		len += sprintf(p + len, "commands:\tspeed <speed>"
@@ -1538,6 +1538,11 @@
 			/* all except 570, 600e/x, 770e, 770x */
 			if (!acpi_ec_write(fan_status_offset, 0x00))
 				return -EIO;
+		} else if (!gfan_handle &&
+			   strlencmp(cmd, "full-speed") == 0) {
+			/* all except 570, 600e/x, 770e, 770x */
+			if (!acpi_ec_write(fan_status_offset, 0x50))
+				return -EIO;
 		} else if (fans_handle &&
 		    sscanf(cmd, "speed %d", &speed) == 1 &&
 		    speed >= 0 && speed <= 65535) {

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