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From: Arend van Spriel <arend.vanspriel@broadcom.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, Arend van Spriel <aspriel@gmail.com>
Subject: [PATCH 1/2] sysfs: add attribute specification for /sysfs/devices/.../coredump
Date: Tue, 19 Dec 2017 11:03:21 +0100	[thread overview]
Message-ID: <1513677802-3031-2-git-send-email-arend.vanspriel@broadcom.com> (raw)
In-Reply-To: <1513677802-3031-1-git-send-email-arend.vanspriel@broadcom.com>

From: Arend van Spriel <aspriel@gmail.com>

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@gmail.com>
---
 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..5989255
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-coredump
@@ -0,0 +1,10 @@
+What:		/sys/devices/.../coredump
+Date:		December 2017
+Contact:	Arend van Spriel <arend.vanspriel@broadcom.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

  reply	other threads:[~2017-12-19 10:03 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-19 10:03 [PATCH 0/2] sysfs: allow user-space request for devcoredump Arend van Spriel
2017-12-19 10:03 ` Arend van Spriel [this message]
2017-12-19 10:03 ` [PATCH 2/2] drivers: base: add coredump driver ops Arend van Spriel
2018-01-09 18:46 ` [PATCH 0/2] sysfs: allow user-space request for devcoredump Greg Kroah-Hartman
     [not found]   ` <CAJ65rDyGSirKUqWkXZomMQMA0d=xy=Kc1STzQyKNVymuK_-aMA@mail.gmail.com>
2018-01-09 19:21     ` Fwd: " Arend van Spriel
2018-01-09 20:03       ` Greg KH
2018-01-09 20:06         ` Arend van Spriel
2018-01-10  8:22           ` Greg KH

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