1 files changed, 20 insertions, 8 deletions

diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c
index ba060d0ceca2..9cfc8142a318 100644
--- a/drivers/staging/speakup/serialio.c
+++ b/drivers/staging/speakup/serialio.c
@@ -28,11 +28,17 @@ static int timeouts;
 static int spk_serial_out(struct spk_synth *in_synth, const char ch);
 static void spk_serial_send_xchar(char ch);
 static void spk_serial_tiocmset(unsigned int set, unsigned int clear);
+static unsigned char spk_serial_in(void);
+static unsigned char spk_serial_in_nowait(void);
+static void spk_serial_flush_buffer(void);
 
 struct spk_io_ops spk_serial_io_ops = {
 	.synth_out = spk_serial_out,
 	.send_xchar = spk_serial_send_xchar,
 	.tiocmset = spk_serial_tiocmset,
+	.synth_in = spk_serial_in,
+	.synth_in_nowait = spk_serial_in_nowait,
+	.flush_buffer = spk_serial_flush_buffer,
 };
 EXPORT_SYMBOL_GPL(spk_serial_io_ops);
 
@@ -132,8 +138,8 @@ static void start_serial_interrupt(int irq)
 	outb(UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2,
 	     speakup_info.port_tts + UART_MCR);
 	/* Turn on Interrupts */
-	outb(UART_IER_MSI|UART_IER_RLSI|UART_IER_RDI,
-			speakup_info.port_tts + UART_IER);
+	outb(UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI,
+	     speakup_info.port_tts + UART_IER);
 	inb(speakup_info.port_tts + UART_LSR);
 	inb(speakup_info.port_tts + UART_RX);
 	inb(speakup_info.port_tts + UART_IIR);
@@ -156,6 +162,7 @@ static void spk_serial_send_xchar(char ch)
 static void spk_serial_tiocmset(unsigned int set, unsigned int clear)
 {
 	int old = inb(speakup_info.port_tts + UART_MCR);
+
 	outb((old & ~clear) | set, speakup_info.port_tts + UART_MCR);
 }
 
@@ -221,7 +228,8 @@ int spk_wait_for_xmitr(struct spk_synth *in_synth)
 	}
 	while (spk_serial_tx_busy()) {
 		if (--tmout == 0) {
-			pr_warn("%s: timed out (tx busy)\n", in_synth->long_name);
+			pr_warn("%s: timed out (tx busy)\n",
+				in_synth->long_name);
 			timeouts++;
 			return 0;
 		}
@@ -240,7 +248,7 @@ int spk_wait_for_xmitr(struct spk_synth *in_synth)
 	return 1;
 }
 
-unsigned char spk_serial_in(void)
+static unsigned char spk_serial_in(void)
 {
 	int tmout = SPK_SERIAL_TIMEOUT;
 
@@ -253,9 +261,8 @@ unsigned char spk_serial_in(void)
 	}
 	return inb_p(speakup_info.port_tts + UART_RX);
 }
-EXPORT_SYMBOL_GPL(spk_serial_in);
 
-unsigned char spk_serial_in_nowait(void)
+static unsigned char spk_serial_in_nowait(void)
 {
 	unsigned char lsr;
 
@@ -264,7 +271,11 @@ unsigned char spk_serial_in_nowait(void)
 		return 0;
 	return inb_p(speakup_info.port_tts + UART_RX);
 }
-EXPORT_SYMBOL_GPL(spk_serial_in_nowait);
+
+static void spk_serial_flush_buffer(void)
+{
+	/* TODO: flush the UART 16550 buffer */
+}
 
 static int spk_serial_out(struct spk_synth *in_synth, const char ch)
 {
@@ -275,7 +286,8 @@ static int spk_serial_out(struct spk_synth *in_synth, const char ch)
 	return 0;
 }
 
-const char *spk_serial_synth_immediate(struct spk_synth *synth, const char *buff)
+const char *spk_serial_synth_immediate(struct spk_synth *synth,
+				       const char *buff)
 {
 	u_char ch;