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Date: Thu, 11 Jan 2018 09:36:37 +0100
From: Arend van Spriel <aspriel@...il.com>
To: Greg Koah Hartmann <gregkh@...uxfoundation.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Arend van Spriel <aspriel@...il.com>
Subject: [PATCH V3 1/3] sysfs: add attribute specification for /sysfs/devices/.../coredump
This patch adds the specification for /sysfs/devices/.../coredump
which allows user-space to trigger a device coredump obtaining
binary data from the device for (fault) analysis. It relies on
CONFIG_DEV_COREDUMP being enabled.
Signed-off-by: Arend van Spriel <aspriel@...il.com>
---
V2:
- no changes.
V3:
- changed contact to my gmail account.
---
Documentation/ABI/testing/sysfs-devices-coredump | 10 ++++++++++
1 file changed, 10 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-devices-coredump
diff --git a/Documentation/ABI/testing/sysfs-devices-coredump b/Documentation/ABI/testing/sysfs-devices-coredump
new file mode 100644
index 0000000..e459368
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-coredump
@@ -0,0 +1,10 @@
+What: /sys/devices/.../coredump
+Date: December 2017
+Contact: Arend van Spriel <aspriel@...il.com>
+Description:
+ The /sys/devices/.../coredump attribute is only present when the
+ device is bound to a driver, which provides the .coredump()
+ callback. The attribute is write only. Anything written to this
+ file will trigger the .coredump() callback.
+
+ Available when CONFIG_DEV_COREDUMP is enabled.
--
1.9.1
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