Add support for /dev/vmeta miscdevice

The kernel folk don't like the uio ioctl idea, so we can't use uio for
this driver.  Instead, switch it to be a self-contained miscdevice.

This adds support to this library for the miscdevice interface.

1 files changed, 7 insertions, 1 deletions

diff --git a/vmeta_lib.h b/vmeta_lib.h
index 058d9c9..6226542 100644
--- a/vmeta_lib.h
+++ b/vmeta_lib.h
@@ -173,7 +173,13 @@ typedef sem_t lock_t;
 //---------------------------------------------------------------------------
 typedef struct vdec_os_driver_cb_s
 {
-	int uiofd;			// the uio file descriptor
+	int fd;				// kernel file descriptor
+	int uio;			// using uio driver
+	struct {
+		UNSG32 phys;
+		UNSG32 size;
+	} map[3];
+
 	UNSG32 io_mem_phy_addr;		// the physical addr of io register base
 	void *io_mem_virt_addr;		// the reg base addr that maped from kernel
 	UNSG32 io_mem_size;		// the size of io mem area