Changeset 1db5669 in mainline for uspace/srv/devman/driver.c

Timestamp:

2013-09-11T12:35:55Z (12 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

48bd6f4, 4c9b28a

Parents:

cd3b380

Message:

devctl show-drv lists attached devices, add device count to list-drv.

File:

• uspace/srv/devman/driver.c (modified) (1 diff)

uspace/srv/devman/driver.c

@@ -729 +729 @@
 }
 
+/** Get list of device functions. */
+int driver_get_devices(driver_t *driver, devman_handle_t *hdl_buf,
+    size_t buf_size, size_t *act_size)
+{
+        size_t act_cnt;
+        size_t buf_cnt;
+
+        fibril_mutex_lock(&driver->driver_mutex);
+
+        buf_cnt = buf_size / sizeof(devman_handle_t);
+
+        act_cnt = list_count(&driver->devices);
+        *act_size = act_cnt * sizeof(devman_handle_t);
+
+        if (buf_size % sizeof(devman_handle_t) != 0) {
+                fibril_mutex_unlock(&driver->driver_mutex);
+                return EINVAL;
+        }
+
+        size_t pos = 0;
+        list_foreach(driver->devices, driver_devices, dev_node_t, dev) {
+                if (pos < buf_cnt) {
+                        hdl_buf[pos] = dev->handle;
+                }
+
+                pos++;
+        }
+
+        fibril_mutex_unlock(&driver->driver_mutex);
+        return EOK;
+}
+
 /** @}
  */