kernel module to register UIO

00_uio_ko

kernel module to register UIO

Makefile

KDIR := $(CURDIR)/../../../kernel/linux-3.18.y/
TARGET := uioko.ko
obj-m += uioko.o

.PHONY : all clean install
all : $(TARGET)
$(TARGET): 
	$(MAKE) -C $(KDIR) M=$(CURDIR) modules

clean:
	$(MAKE) -C $(KDIR) M=$(CURDIR) clean

uioko.c

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/uio_driver.h>

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Tetsuyuki Kobayashi");
MODULE_DESCRIPTION("Register UIO");


static struct uio_info mydev_mem = {
	.name = "my_device",
	.version = "0.1",
	.irq = UIO_IRQ_NONE,
};

static struct resource uio_resources[] = {
	[0] = {
		.name	= "peri_pmc",
		.start	= 0x120a0000,
		.end	= 0x120a0fff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.name	= "DUMMY",
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device my_dev = {
	.name = "uio_pdrv_genirq",
	.id = -1,
	.dev = {
		.platform_data = &mydev_mem,
	},
	.resource	= uio_resources,
	.num_resources	= ARRAY_SIZE(uio_resources),
};

static int __init uio_init(void)
{
	printk(KERN_INFO "uio_init\n");
	return platform_device_register(&my_dev);
}

static void __exit uio_cleanup(void)
{
	printk(KERN_INFO "uio_cleanup\n");
	platform_device_unregister(&my_dev);
}

module_init(uio_init);
module_exit(uio_cleanup);