X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Flinux%2Fmemory.h;h=37fa19b34ef584bcd8626059675a33baef2df939;hb=714f83d5d9f7c785f622259dad1f4fad12d64664;hp=3fdc10806d31b9f55470dc3fc3949653ceb1498d;hpb=97d61b8e3aef163a75f80f4762794c154572293d;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/memory.h b/include/linux/memory.h
index 3fdc10806d3..37fa19b34ef 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -99,4 +99,21 @@ enum mem_add_context { BOOT, HOTPLUG };
 #define hotplug_memory_notifier(fn, pri) do { } while (0)
 #endif
 
+/*
+ * 'struct memory_accessor' is a generic interface to provide
+ * in-kernel access to persistent memory such as i2c or SPI EEPROMs
+ */
+struct memory_accessor {
+	ssize_t (*read)(struct memory_accessor *, char *buf, off_t offset,
+			size_t count);
+	ssize_t (*write)(struct memory_accessor *, const char *buf,
+			 off_t offset, size_t count);
+};
+
+/*
+ * Kernel text modification mutex, used for code patching. Users of this lock
+ * can sleep.
+ */
+extern struct mutex text_mutex;
+
 #endif /* _LINUX_MEMORY_H_ */