Changeset 2703b824 in mainline for uspace/lib/c/generic/device/clock_dev.c

Timestamp:

2012-04-15T22:36:04Z (12 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

709476f4

Parents:

f6af126

Message:

rtc: add support to the clock_dev_time_set() operation

File:

• uspace/lib/c/generic/device/clock_dev.c (modified) (1 diff)

uspace/lib/c/generic/device/clock_dev.c

@@ -75 +75 @@
 }
 
+/** Set the current time
+ *
+ * @param sess   Session of the device
+ * @param t      The current time that will be written to the device
+ *
+ * @return       EOK on success or a negative error code
+ */
+int
+clock_dev_time_set(async_sess_t *sess, struct tm *t)
+{
+        ipc_call_t answer;
+        aid_t req;
+        int ret;
+
+        async_exch_t *exch = async_exchange_begin(sess);
+
+        req = async_send_1(exch, DEV_IFACE_ID(CLOCK_DEV_IFACE),
+            CLOCK_DEV_TIME_SET, &answer);
+        ret = async_data_write_start(exch, t, sizeof(*t));
+
+        async_exchange_end(exch);
+
+        sysarg_t rc;
+        if (ret != EOK) {
+                async_wait_for(req, &rc);
+                if (rc == EOK)
+                        return ret;
+        }
+
+        async_wait_for(req, &rc);
+        if ((int) rc != EOK)
+                return ret;
+
+        return (int) IPC_GET_ARG1(answer);
+}
+
 /** @}
  */