Changeset b910455 in mainline for uspace/lib/c/generic/devman.c

Timestamp:

2011-04-07T09:46:11Z (13 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

6639ae1

Parents:

f6bffee (diff), 8e80d3f (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes.

File:

• uspace/lib/c/generic/devman.c (modified) (3 diffs)

uspace/lib/c/generic/devman.c

@@ -147 +147 @@
                 ret = devman_send_match_id(phone, match_id);
                 if (ret != EOK) {
-                        printf("Driver failed to send match id, error %d\n",
-                            ret);
                         return ret;
                 }
@@ -195 +193 @@
         }
         
-        devman_send_match_ids(phone, match_ids);
-        
-        async_wait_for(req, &retval);
-        
-        async_serialize_end();
-        
+        int match_ids_rc = devman_send_match_ids(phone, match_ids);
+        
+        async_wait_for(req, &retval);
+        
+        async_serialize_end();
+        
+        /* Prefer the answer to DEVMAN_ADD_FUNCTION in case of errors. */
+        if ((match_ids_rc != EOK) && (retval == EOK)) {
+                retval = match_ids_rc;
+        }
+
         if (retval == EOK)
                 fun_handle = (int) IPC_GET_ARG1(answer);
@@ -326 +329 @@
 }
 
+int devman_device_get_handle_by_class(const char *classname,
+    const char *devname, devman_handle_t *handle, unsigned int flags)
+{
+        int phone = devman_get_phone(DEVMAN_CLIENT, flags);
+
+        if (phone < 0)
+                return phone;
+
+        async_serialize_start();
+
+        ipc_call_t answer;
+        aid_t req = async_send_1(phone, DEVMAN_DEVICE_GET_HANDLE_BY_CLASS,
+            flags, &answer);
+
+        sysarg_t retval = async_data_write_start(phone, classname,
+            str_size(classname));
+        if (retval != EOK) {
+                async_wait_for(req, NULL);
+                async_serialize_end();
+                return retval;
+        }
+        retval = async_data_write_start(phone, devname,
+            str_size(devname));
+        if (retval != EOK) {
+                async_wait_for(req, NULL);
+                async_serialize_end();
+                return retval;
+        }
+
+        async_wait_for(req, &retval);
+
+        async_serialize_end();
+
+        if (retval != EOK) {
+                if (handle != NULL)
+                        *handle = (devman_handle_t) -1;
+                return retval;
+        }
+
+        if (handle != NULL)
+                *handle = (devman_handle_t) IPC_GET_ARG1(answer);
+
+        return retval;
+}
+
 
 /** @}