Support changed tty_prepare_flip_string() interface from kernel 3.9.
--- a/tty/module.c Fri Sep 16 12:35:09 2016 +0200
+++ b/tty/module.c Tue Oct 18 10:20:21 2016 +0200
@@ -337,7 +337,11 @@
to_recv = ec_tty_rx_size(tty);
if (to_recv && tty->tty) {
unsigned char *cbuf;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0)
+ int space = tty_prepare_flip_string(tty->tty->port, &cbuf, to_recv);
+#else
int space = tty_prepare_flip_string(tty->tty, &cbuf, to_recv);
+#endif
if (space < to_recv) {
printk(KERN_WARNING PFX "Insufficient space to_recv=%d space=%d\n",
@@ -362,7 +366,11 @@
tty->rx_read_idx =
(tty->rx_read_idx + 1) % EC_TTY_RX_BUFFER_SIZE;
}
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0)
+ tty_flip_buffer_push(tty->tty->port);
+#else
tty_flip_buffer_push(tty->tty);
+#endif
}
}