linux-kernel - [PATCH 4/5] Return the fan speed via sysfs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1407359103-6012-5-git-send-email-kreijack@inwind.it>
Date:	Wed,  6 Aug 2014 21:05:02 +0000
From:	Goffredo Baroncelli <kreijack@...il.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Jean Delvare <jdelvare@...e.de>,
	Goffredo Baroncelli <kreijack@...ind.it>
Subject: [PATCH 4/5] Return the fan speed via sysfs

Return the fan speed via sysfs:
/sys/devices/temperature/fan_level

This patch is copied from the Bryan Christianson's patch (see
debian bug #741663)

Signed-off-by: Goffredo Baroncelli <kreijack@...ind.it>
---
 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 7c512db..b6cba98 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);
 
 
 /************************************************************************/
@@ -265,6 +271,7 @@ 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");
@@ -275,6 +282,7 @@ 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 );
-- 
2.0.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/