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path: root/drivers/media/radio/si470x/radio-si470x-usb.c
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Diffstat (limited to 'drivers/media/radio/si470x/radio-si470x-usb.c')
-rw-r--r--drivers/media/radio/si470x/radio-si470x-usb.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c
index 6508161..2f5cf6c 100644
--- a/drivers/media/radio/si470x/radio-si470x-usb.c
+++ b/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -371,6 +371,23 @@ static int si470x_get_scratch_page_versions(struct si470x_device *radio)
/**************************************************************************
+ * General Driver Functions - DISCONNECT_CHECK
+ **************************************************************************/
+
+/*
+ * si470x_disconnect_check - check whether radio disconnects
+ */
+int si470x_disconnect_check(struct si470x_device *radio)
+{
+ if (radio->disconnected)
+ return -EIO;
+ else
+ return 0;
+}
+
+
+
+/**************************************************************************
* RDS Driver Functions
**************************************************************************/