From 6751667a29d6fd64afb9ce30567ad616b68ed789 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Tue, 16 Aug 2016 14:34:18 +0100 Subject: driver core: Add deferred_probe attribute to devices in sysfs It is sometimes useful to know that a device is on the deferred probe list rather than, say, not having a driver available. Expose this information to user-space. Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-devices-deferred_probe | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-devices-deferred_probe (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-devices-deferred_probe b/Documentation/ABI/testing/sysfs-devices-deferred_probe new file mode 100644 index 000000000000..58553d7a321f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-devices-deferred_probe @@ -0,0 +1,12 @@ +What: /sys/devices/.../deferred_probe +Date: August 2016 +Contact: Ben Hutchings +Description: + The /sys/devices/.../deferred_probe attribute is + present for all devices. If a driver detects during + probing a device that a related device is not yet + ready, it may defer probing of the first device. The + kernel will retry probing the first device after any + other device is successfully probed. This attribute + reads as 1 if probing of this device is currently + deferred, or 0 otherwise. -- cgit