tequilaOS/platform_system_core
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ueventd: Ueventd changes the permission of sysfs files for max/min

Browse source 
cpufreq

The owner and permissions for the sysfs file
/sys/devices/system/cpu*/cpufreq/scaling_max/min_freq is changed.
This would allow the PowerHAL to change the max/min cpufreq even after
the associated CPU's are hotplugged out and back in.

Change-Id: Ibe0b4aaf3db555ed48e89a7fcd0c5fd3a18cf233
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
This commit is contained in:
Ruchi Kandoi 2014-04-29 19:14:37 -07:00
parent 9ed86eff88
commit 75b287b771
2 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
init/devices.c
View file

@ -699,7 +699,7 @@ static void handle_generic_device_event(struct uevent *uevent)
static void handle_device_event(struct uevent *uevent)
{
if (!strcmp(uevent->action,"add") || !strcmp(uevent->action, "change"))
if (!strcmp(uevent->action,"add") || !strcmp(uevent->action, "change") || !strcmp(uevent->action, "online"))
fixup_sys_perms(uevent->path);
if (!strncmp(uevent->subsystem, "block", 5)) {

2
rootdir/ueventd.rc
View file

@ -91,3 +91,5 @@ subsystem adf
/sys/devices/virtual/input/input* enable 0660 root input
/sys/devices/virtual/input/input* poll_delay 0660 root input
/sys/devices/virtual/usb_composite/* enable 0664 root system
/sys/devices/system/cpu/cpu* cpufreq/scaling_max_freq 0664 system system
/sys/devices/system/cpu/cpu* cpufreq/scaling_min_freq 0664 system system