[PATCH] DRIVER: request_firmware() hotplug interface

drivers/base/Kconfig.lib

+#
+# To be sourced from lib/Kconfig
+#
+
+config FW_LOADER
+	tristate "Hotplug firmware loading support"
+	---help---
+	  This option is provided for the case where no in-kernel-tree modules
+	  require hotplug firmware loading support, but a module built outside
+	  the kernel tree does.
+

drivers/base/Makefile

@@ -3,4 +3,5 @@
 obj-y			:= core.o sys.o interface.o power.o bus.o \
 			   driver.o class.o platform.o \
 			   cpu.o firmware.o init.o map.o
+obj-$(CONFIG_FW_LOADER)	+= firmware_class.o
 obj-$(CONFIG_NUMA)	+= node.o  memblk.o

include/linux/firmware.h

+#ifndef _LINUX_FIRMWARE_H
+#define _LINUX_FIRMWARE_H
+#include <linux/module.h>
+#include <linux/types.h>
+#define FIRMWARE_NAME_MAX 30 
+struct firmware {
+	size_t size;
+	u8 *data;
+};
+int request_firmware(const struct firmware **fw, const char *name,
+		     struct device *device);
+int request_firmware_nowait(
+	struct module *module,
+	const char *name, struct device *device, void *context,
+	void (*cont)(const struct firmware *fw, void *context));
+/* Maybe 'device' should be 'struct device *' */
+
+void release_firmware(const struct firmware *fw);
+void register_firmware(const char *name, const u8 *data, size_t size);
+#endif

lib/Kconfig

@@ -26,5 +26,7 @@ config ZLIB_DEFLATE
 		(PPP_DEFLATE=m || JFFS2_FS=m || CRYPTO_DEFLATE=m)
 	default y if PPP_DEFLATE=y || JFFS2_FS=y || CRYPTO_DEFLATE=y
 
+source "drivers/base/Kconfig.lib"
+
 endmenu