Diffstat (limited to 'Documentation/ABI/testing/sysfs-devices-power')
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power
index 8ffbc25376a..840f7d64d48 100644
@@ -165,3 +165,21 @@ Description:
Not all drivers support this attribute. If it isn't supported,
attempts to read or write it will yield I/O errors.
+Date: March 2012
+Contact: Rafael J. Wysocki <firstname.lastname@example.org>
+ The /sys/devices/.../power/pm_qos_resume_latency_us attribute
+ contains the PM QoS resume latency limit for the given device,
+ which is the maximum allowed time it can take to resume the
+ device, after it has been suspended at run time, from a resume
+ request to the moment the device will be ready to process I/O,
+ in microseconds. If it is equal to 0, however, this means that
+ the PM QoS resume latency may be arbitrary.
+ Not all drivers support this attribute. If it isn't supported,
+ it is not present.
+ This attribute has no effect on system-wide suspend/resume and