WebSVN – HelenOS – Path Comparison – / – /trunk/uspace/lib/libc/ Rev 4590 and /trunk/uspace/lib/libc/ Rev 4591

Ignore whitespace Rev 4590 → Rev 4591

 /trunk/uspace/lib/libc/include/devmap.h
 ,6 → 47,9
 extern int devmap_device_get_handle(const char *, dev_handle_t *, unsigned int);
 extern int devmap_device_connect(dev_handle_t, unsigned int);
+extern int devmap_null_create(void);
+extern void devmap_null_destroy(int);
 extern ipcarg_t devmap_device_get_count(void);
 extern ipcarg_t devmap_device_get_devices(ipcarg_t, dev_desc_t *);

 /trunk/uspace/lib/libc/include/ipc/devmap.h
 ,7 → 28,7
 /** @addtogroup devmap
  * @{
- */
+ */
 #ifndef DEVMAP_DEVMAP_H_
 #define DEVMAP_DEVMAP_H_
 ,6 → 48,8
     DEVMAP_DEVICE_UNREGISTER,
     DEVMAP_DEVICE_GET_NAME,
     DEVMAP_DEVICE_GET_HANDLE,
+    DEVMAP_DEVICE_NULL_CREATE,
+    DEVMAP_DEVICE_NULL_DESTROY,
     DEVMAP_DEVICE_GET_COUNT,
     DEVMAP_DEVICE_GET_DEVICES
 } devmap_request_t;

 /trunk/uspace/lib/libc/generic/devmap.c
 ,6 → 218,31
     return phone;
 }
+int devmap_null_create(void)
+{
+    int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+    if (phone < 0)
+        return -1;
+    ipcarg_t null_id;
+    int retval = async_req_0_1(phone, DEVMAP_DEVICE_NULL_CREATE, &null_id);
+    if (retval != EOK)
+        return -1;
+    return (int) null_id;
+}
+void devmap_null_destroy(int null_id)
+{
+    int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+    if (phone < 0)
+        return;
+    async_req_1_0(phone, DEVMAP_DEVICE_NULL_DESTROY, (ipcarg_t) null_id);
+}
 ipcarg_t devmap_device_get_count(void)
 {
     int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);