1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h
index cdf338d94b7..20be327bfbb 100644
--- a/include/linux/uio_driver.h
+++ b/include/linux/uio_driver.h
@@ -38,6 +38,24 @@ struct uio_mem {
 
 #define MAX_UIO_MAPS    5
 
+struct uio_portio;
+
+/**
+ * struct uio_port - description of a UIO port region
+ * @start:              start of port region
+ * @size:               size of port region
+ * @porttype:           type of port (see UIO_PORT_* below)
+ * @portio:             for use by the UIO core only.
+ */
+struct uio_port {
+        unsigned long           start;
+        unsigned long           size;
+        int                     porttype;
+        struct uio_portio       *portio;
+};
+
+#define MAX_UIO_PORT_REGIONS    5
+
 struct uio_device;
 
 /**
@@ -46,6 +64,7 @@ struct uio_device;
  * @name:               device name
  * @version:            device driver version
  * @mem:                list of mappable memory regions, size==0 for end of list
+ * @port:               list of port regions, size==0 for end of list
  * @irq:                interrupt number or UIO_IRQ_CUSTOM
  * @irq_flags:          flags for request_irq()
  * @priv:               optional private data
@@ -60,6 +79,7 @@ struct uio_info {
         char                    *name;
         char                    *version;
         struct uio_mem          mem[MAX_UIO_MAPS];
+        struct uio_port         port[MAX_UIO_PORT_REGIONS];
         long                    irq;
         unsigned long           irq_flags;
         void                    *priv;
@@ -92,4 +112,10 @@ extern void uio_event_notify(struct uio_info *info);
 #define UIO_MEM_LOGICAL 2
 #define UIO_MEM_VIRTUAL 3
 
+/* defines for uio_port->porttype */
+#define UIO_PORT_NONE   0
+#define UIO_PORT_X86    1
+#define UIO_PORT_GPIO   2
+#define UIO_PORT_OTHER  3
+
 #endif /* _LINUX_UIO_DRIVER_H_ */