linux-kernel - [PATCH v6 4/5] docs: Add entry for /sys/module/*/modalias

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Message-ID: <20221202224744.1447448-4-allenwebb@google.com>
Date:   Fri,  2 Dec 2022 16:47:43 -0600
From:   Allen Webb <allenwebb@...gle.com>
To:     "linux-modules@...r.kernel.org" <linux-modules@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Luis Chamberlain <mcgrof@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Allen Webb <allenwebb@...gle.com>
Subject: [PATCH v6 4/5] docs: Add entry for /sys/module/*/modalias

Update the documentation to include the modalias sysfs attribute for
modules.

Signed-off-by: Allen Webb <allenwebb@...gle.com>
---
 Documentation/ABI/testing/sysfs-module | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module
index 08886367d0470..1244a0e8d133e 100644
--- a/Documentation/ABI/testing/sysfs-module
+++ b/Documentation/ABI/testing/sysfs-module
@@ -48,6 +48,18 @@ Contact:	Kay Sievers <kay.sievers@...y.org>
 Description:	Show the initialization state(live, coming, going) of
 		the module.
 
+What:		/sys/module/*/modalias
+Date:		Nov 2022
+KernelVersion:  6.2
+Contact:	Allen Webb <allenwebb@...gle.com>
+Description:    Module match-id-based modaliases
+
+                These match against MODALIAS values included in the uevent of
+                devices when they are created. The attribute is implemented for
+                subsystems with the authorized attribute such as USB so
+                userspace can make authorization decisions based on which
+                modules match the device.
+
 What:		/sys/module/*/taint
 Date:		Jan 2012
 KernelVersion:	3.3
-- 
2.37.3