Return the fan speed via sysfs:
/sys/devices/temperature/fan_level
This patch is extracted from a Bryan Christianson's bigger one (see
debian bug #741663)
Signed-off-by: Goffredo Baroncelli <[email protected]>
---
drivers/macintosh/therm_windtunnel.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index 68f1067..30a6588 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -109,9 +109,15 @@ show_case_temperature( struct device *dev, struct device_attribute *attr, char *
return sprintf(buf, "%d.%d\n", x.casetemp>>8, (x.casetemp & 255)*10/256 );
}
+static ssize_t
+show_fan_level(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", 11 - x.fan_level);
+}
+
static DEVICE_ATTR(cpu_temperature, S_IRUGO, show_cpu_temperature, NULL );
static DEVICE_ATTR(case_temperature, S_IRUGO, show_case_temperature, NULL );
-
+static DEVICE_ATTR(fan_level, S_IRUGO, show_fan_level, NULL);
/************************************************************************/
@@ -264,6 +270,7 @@ setup_hardware( void )
err = device_create_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
err |= device_create_file( &x.of_dev->dev, &dev_attr_case_temperature );
+ err |= device_create_file(&x.of_dev->dev, &dev_attr_fan_level);
if (err)
printk(KERN_WARNING
"Failed to create temperature attribute file(s).\n");
@@ -274,6 +281,7 @@ restore_regs( void )
{
device_remove_file( &x.of_dev->dev, &dev_attr_cpu_temperature );
device_remove_file( &x.of_dev->dev, &dev_attr_case_temperature );
+ device_remove_file(&x.of_dev->dev, &dev_attr_fan_level);
write_reg( x.fan, 0x01, x.r1, 1 );
write_reg( x.fan, 0x20, x.r20, 1 );
--
2.1.0.rc1