diff -pNaru5 a/driver/2.6.27/dgnc_tty.c b/driver/2.6.27/dgnc_tty.c
--- a/driver/2.6.27/dgnc_tty.c	2023-12-19 01:40:37.816271903 -0500
+++ b/driver/2.6.27/dgnc_tty.c	2023-12-19 01:43:19.098247079 -0500
@@ -155,11 +155,15 @@ static int dgnc_tty_tiocmset(struct tty_
 static int dgnc_tty_tiocmget(struct tty_struct *tty);
 static int dgnc_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear);
 #endif
 static int dgnc_tty_send_break(struct tty_struct *tty, int msec);
 static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,6,0)
 static int dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
+#else
+static ssize_t dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf, size_t count);
+#endif
 #if LINUX_VERSION_CODE < KERNEL_VERSION(6,0,0)
 static void dgnc_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios);
 #else
 static void dgnc_tty_set_termios(struct tty_struct *tty, const struct ktermios *old_termios);
 #endif
@@ -2251,12 +2255,17 @@ static int dgnc_tty_put_char(struct tty_
  * dgnc_tty_write()
  *
  * Take data from the user or kernel and send it out to the FEP.
  * In here exists all the Transparent Print magic as well.
  */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,6,0)
 static int dgnc_tty_write(struct tty_struct *tty,
 		const unsigned char *buf, int count)
+#else
+static ssize_t dgnc_tty_write(struct tty_struct *tty,
+		const unsigned char *buf, size_t count)
+#endif
 {
 	struct channel_t *ch = NULL;
 	struct un_t *un = NULL;
 	int bufcount = 0, n = 0;
 	int orig_count = 0;