From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Sat, 22 May 2010 12:22:27 +0000 (-0400)
Subject: Classes and devices API.
X-Git-Url: http://git.cascardo.info/?p=cascardo%2Fkernel%2Fslides%2F.git;a=commitdiff_plain;h=c4c47cfe4a5334a5ca426aa41afadb341cdde951

Classes and devices API.
---

diff --git a/12dd/dd b/12dd/dd
index fcc69f5..dde2641 100644
--- a/12dd/dd
+++ b/12dd/dd
@@ -48,3 +48,68 @@
 * An object representing a device in the bus or a class device
 * Establishes an hierarchy through the parent link
 * A class device usually has a device in the bus as its parent
+
+# API
+
+# Classes
+
+* linux/device.h
+* struct class
+	- name
+	- owner
+	- dev_release
+* class\\_create(owner, name)
+* class\\_destroy(class)
+* class\\_register(class)
+* class\\_unregister(class)
+
+# Devices
+
+* struct device
+	- parent
+	- devt
+	- class
+	- release
+
+# Devices API
+
+* device\\_initialize(dev)
+* get\\_device(dev)
+* put\\_device(dev)
+* dev\\_set\\_name(dev, fmt, ...)
+* dev\\_set\\_drvdata(dev, drvdata)
+* dev\\_get\\_drvdata(dev)
+
+# Devices API (cont...)
+
+* device\\_add(dev)
+* device\\_del(dev)
+* device\\_register(dev)
+* device\\_unregister(dev)
+* device\\_create(class, parent, devt, drvdata, fmt, ...)
+* device\\_destroy(class, devt)
+
+# Attributes
+
+* struct device\\_attribute
+	- attr
+		* name
+		* mode
+	- show
+	- store
+* ssize\\_t show(dev, attr, char *buf)
+* ssize\\_t store(dev, attr, char *buf, size\\_t count)
+* sprintf
+* strict\\_strtol
+* strnlen
+
+# Adding attributes
+
+* class.dev\\_attrs
+* device\\_create\\_file(dev, attr)
+* device\\_remove\\_file(dev, attr)
+
+# devtmpfs
+
+* class.devnode
+* char *devnode(dev, mode_t *)