From: Stefani Seibold <stefani@xxxxxxxxxxx>
Signed-off-by: Stefani Seibold <stefani@xxxxxxxxxxx>
---
drivers/usb/usb-skeleton.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index dc95129..61f4ac8 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -133,7 +133,7 @@ static void skel_draw_down(struct usb_skel *dev)
usb_kill_urb(dev->bulk_in_urb);
}
-static int skel_flush(struct file *file, fl_owner_t id)
+static int skel_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
struct usb_skel *dev = file->private_data;
int retval;
@@ -157,6 +157,11 @@ exit:
return retval;
}
+static int skel_flush(struct file *file, fl_owner_t id)
+{
+ return skel_fsync(file, 0, LLONG_MAX, 0);
+}
+
static void skel_read_bulk_callback(struct urb *urb)
{
struct usb_skel *dev;
@@ -470,6 +475,7 @@ static const struct file_operations skel_fops = {
.write = skel_write,
.open = skel_open,
.release = skel_release,
+ .fsync = skel_fsync,
.flush = skel_flush,
.llseek = noop_llseek,
};
--
1.7.8.6
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