From d26f3bb8dd7a75e518c20375c787373da048eeae Mon Sep 17 00:00:00 2001
From: Ciro Santilli <ciro.santilli@gmail.com>
Date: Thu, 29 Jun 2017 11:28:48 +0100
Subject: [PATCH] mmio print addr

---
 kernel_module/hw_min.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel_module/hw_min.c b/kernel_module/hw_min.c
index 30d6d1e..8e684da 100644
--- a/kernel_module/hw_min.c
+++ b/kernel_module/hw_min.c
@@ -48,7 +48,7 @@ static int myinit(void)
 	major = register_chrdev(0, CDEV_NAME, &fops);
 	mmio = (void __iomem *)mmio_addr;
 	if (request_mem_region(mmio_addr, MMIO_LEN, CDEV_NAME) == NULL) {
-		pr_info("request_mem_region\n");
+		pr_info("request_mem_region mmio = %p\n", mmio);
 		goto error;
 	}
 	ioremap(mmio_addr, 8);