diff --git a/hardware/common/serial.c b/hardware/common/serial.c
index 50a884e9..9ab3169c 100644
--- a/hardware/common/serial.c
+++ b/hardware/common/serial.c
@@ -17,17 +17,26 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <glob.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#ifdef _WIN32
+#include <conio.h>
+#else
+#include <glob.h>
 #include <termios.h>
+#endif
 #include <stdlib.h>
 #include <glib.h>
 #include <sigrok.h>
 
+// FIXME: Must be moved, or rather passed as function argument.
+#ifdef _WIN32
+HANDLE hdl;
+#endif
+
 char *serial_port_glob[] = {
 	/* Linux */
 	"/dev/ttyS*",
@@ -42,6 +51,9 @@ char *serial_port_glob[] = {
 
 GSList *list_serial_ports(void)
 {
+#ifdef _WIN32
+	/* TODO */
+#else
 	glob_t g;
 	GSList *ports;
 	unsigned int i, j;
@@ -57,37 +69,96 @@ GSList *list_serial_ports(void)
 	}
 
 	return ports;
+#endif
 }
 
 int serial_open(const char *pathname, int flags)
 {
+#ifdef _WIN32
+	/* FIXME: Don't hardcode COM1. */
+	hdl = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, 0,
+			 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
+	if (hdl == INVALID_HANDLE_VALUE) {
+		/* TODO: Error handling. */
+	}
+	return 0;
+#else
 	return open(pathname, flags);
+#endif
 }
 
 int serial_close(int fd)
 {
+#ifdef _WIN32
+	CloseHandle(hdl);
+#else
 	return close(fd);
+#endif
 }
 
 void *serial_backup_params(int fd)
 {
+#ifdef _WIN32
+	/* TODO */
+#else
 	struct termios *term;
 
 	term = malloc(sizeof(struct termios));
 	tcgetattr(fd, term);
 
 	return term;
+#endif
 }
 
 void serial_restore_params(int fd, void *backup)
 {
+#ifdef _WIN32
+	/* TODO */
+#else
 	tcsetattr(fd, TCSADRAIN, (struct termios *)backup);
+#endif
 }
 
 /* flowcontrol 1 = rts/cts  2 = xon/xoff */
 int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
 		      int flowcontrol)
 {
+#ifdef _WIN32
+	DCB dcb;
+
+	if (!GetCommState(hdl, &dcb)) {
+		/* TODO: Error handling. */
+	}
+
+	/* TODO: Rename 'speed' to 'baudrate'. */
+	switch(speed) {
+	case 115200:
+		dcb.BaudRate = CBR_115200;
+		break;
+	case 57600:
+		dcb.BaudRate = CBR_57600;
+		break;
+	case 38400:
+		dcb.BaudRate = CBR_38400;
+		break;
+	case 19200:
+		dcb.BaudRate = CBR_19200;
+		break;
+	case 9600:
+		dcb.BaudRate = CBR_9600;
+		break;
+	default:
+		/* TODO: Error handling. */
+		break;
+	}
+	dcb.ByteSize = bits;
+	dcb.Parity = NOPARITY; /* TODO: Don't hardcode. */
+	dcb.StopBits = ONESTOPBIT; /* TODO: Don't hardcode. */
+
+	if (!SetCommState(hdl, &dcb)) {
+		/* TODO: Error handling. */
+	}
+#else
 	struct termios term;
 
 	/* Only supporting what we need really, currently the OLS driver. */
@@ -106,6 +177,7 @@ int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
 	term.c_iflag |= IGNPAR;
 	if (tcsetattr(fd, TCSADRAIN, &term) < 0)
 		return SIGROK_ERR;
+#endif
 
 	return SIGROK_OK;
 }
diff --git a/hardware/openbench-logic-sniffer/ols.c b/hardware/openbench-logic-sniffer/ols.c
index 0718a303..5742da19 100644
--- a/hardware/openbench-logic-sniffer/ols.c
+++ b/hardware/openbench-logic-sniffer/ols.c
@@ -24,11 +24,17 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#ifndef _WIN32
 #include <termios.h>
+#endif
 #include <string.h>
 #include <sys/time.h>
 #include <inttypes.h>
+#ifdef _WIN32
+/* TODO */
+#else
 #include <arpa/inet.h>
+#endif
 #include <glib.h>
 #include <sigrok.h>
 
@@ -219,7 +225,12 @@ static int hw_init(char *deviceinfo)
 		 * respond with g_poll().
 		 */
 		g_message("probing %s...", (char *)l->data);
+#ifdef _WIN32
+		// FIXME
+		// hdl = serial_open(l->data, 0);
+#else
 		fd = serial_open(l->data, O_RDWR | O_NONBLOCK);
+#endif
 		if (fd != -1) {
 			serial_params[devcnt] = serial_backup_params(fd);
 			serial_set_params(fd, 115200, 8, 0, 1, 2);
@@ -401,7 +412,12 @@ static int set_configuration_samplerate(struct sigrok_device_instance *sdi,
 		flag_reg &= ~FLAG_DEMUX;
 		divider = (CLOCK_RATE / samplerate) - 1;
 	}
+#ifdef _WIN32
+	// FIXME
+	// divider = htonl(divider);
+#else
 	divider = htonl(divider);
+#endif
 
 	g_message("setting samplerate to %" PRIu64 " Hz (divider %u, demux %s)",
 		  samplerate, divider, flag_reg & FLAG_DEMUX ? "on" : "off");
@@ -560,7 +576,10 @@ static int receive_data(int fd, int revents, void *user_data)
 		 * This is the main loop telling us a timeout was reached, or
 		 * we've acquired all the samples we asked for -- we're done.
 		 */
+#ifndef _WIN32
+		/* TODO: Move to serial.c? */
 		tcflush(fd, TCIOFLUSH);
+#endif
 		serial_close(fd);
 		packet.type = DF_END;
 		packet.length = 0;