X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/b3b42765712afed5a35c9be5c832f4a06bd85e7a..c50398ab4cb09658b3b3fff74804d2f26df785e7:/lunaix-os/includes/lunaix/device.h

diff --git a/lunaix-os/includes/lunaix/device.h b/lunaix-os/includes/lunaix/device.h
index 8171600..c456df4 100644
--- a/lunaix-os/includes/lunaix/device.h
+++ b/lunaix-os/includes/lunaix/device.h
@@ -7,6 +7,8 @@
 #include <lunaix/ds/llist.h>
 #include <lunaix/types.h>
 
+#define DEV_STRUCT_MAGIC 0x5645444c
+
 #define DEV_MSKIF 0x00000003
 
 #define DEV_IFVOL 0x0 // volumetric (block) device
@@ -17,6 +19,7 @@ typedef unsigned int dev_t;
 
 struct device
 {
+    uint32_t magic;
     struct llist_header siblings;
     struct llist_header children;
     struct device* parent;
@@ -27,6 +30,7 @@ struct device
     void* underlay;
     int (*read)(struct device* dev, void* buf, size_t offset, size_t len);
     int (*write)(struct device* dev, void* buf, size_t offset, size_t len);
+    int (*exec_cmd)(struct device* dev, uint32_t req, va_list args);
 };
 
 struct device*
@@ -52,12 +56,12 @@ struct device*
 device_getbyid(struct llist_header* devlist, dev_t id);
 
 struct device*
-device_getbyhname(struct llist_header* devlist, struct hstr* name);
+device_getbyhname(struct device* root_dev, struct hstr* name);
 
 struct device*
-device_getbyname(struct llist_header* devlist, const char* name, size_t len);
+device_getbyname(struct device* root_dev, const char* name, size_t len);
 
 struct device*
-device_getbyoffset(struct llist_header* devlist, int pos);
+device_getbyoffset(struct device* root_dev, int pos);
 
 #endif /* __LUNAIX_DEVICE_H */