diff --git a/drivers/usb/serial/kl5kusb105.h b/drivers/usb/serial/kl5kusb105.h
new file mode 100644
index 0000000..1231d9e
--- /dev/null
+++ b/drivers/usb/serial/kl5kusb105.h
@@ -0,0 +1,69 @@
+/*
+ * Definitions for the KLSI KL5KUSB105 serial port adapter
+ */
+
+/* vendor/product pairs that are known to contain this chipset */
+#define PALMCONNECT_VID		0x0830
+#define PALMCONNECT_PID		0x0080
+
+#define KLSI_VID		0x05e9
+#define KLSI_KL5KUSB105D_PID	0x00c0
+
+/* Vendor commands: */
+
+
+/* port table -- the chip supports up to 4 channels */
+
+/* baud rates */
+
+enum {
+  kl5kusb105a_sio_b115200 = 0,
+  kl5kusb105a_sio_b57600  = 1,
+  kl5kusb105a_sio_b38400  = 2,
+  kl5kusb105a_sio_b19200  = 4,
+  kl5kusb105a_sio_b14400  = 5,
+  kl5kusb105a_sio_b9600   = 6,
+  kl5kusb105a_sio_b4800   = 8,   /* unchecked */
+  kl5kusb105a_sio_b2400   = 9,   /* unchecked */
+  kl5kusb105a_sio_b1200   = 0xa,  /* unchecked */
+  kl5kusb105a_sio_b600    = 0xb   /* unchecked */
+};
+
+/* data bits */
+#define kl5kusb105a_dtb_7   7
+#define kl5kusb105a_dtb_8   8
+
+
+
+/* requests: */
+#define KL5KUSB105A_SIO_SET_DATA  1
+#define KL5KUSB105A_SIO_POLL      2
+#define KL5KUSB105A_SIO_CONFIGURE      3
+/* values used for request KL5KUSB105A_SIO_CONFIGURE */
+#define KL5KUSB105A_SIO_CONFIGURE_READ_ON      3
+#define KL5KUSB105A_SIO_CONFIGURE_READ_OFF     2
+
+/* Interpretation of modem status lines */
+/* These need sorting out by individually connecting pins and checking
+ * results. FIXME!
+ * When data is being sent we see 0x30 in the lower byte; this must
+ * contain DSR and CTS ...
+ */
+#define KL5KUSB105A_DSR			((1<<4) | (1<<5))
+#define KL5KUSB105A_CTS			((1<<5) | (1<<4))
+
+#define KL5KUSB105A_WANTS_TO_SEND	0x30
+//#define KL5KUSB105A_DTR			/* Data Terminal Ready */
+//#define KL5KUSB105A_CTS			/* Clear To Send */
+//#define KL5KUSB105A_CD			/* Carrier Detect */
+//#define KL5KUSB105A_DSR			/* Data Set Ready */
+//#define KL5KUSB105A_RxD			/* Receive pin */
+
+//#define KL5KUSB105A_LE
+//#define KL5KUSB105A_RTS		
+//#define KL5KUSB105A_ST		
+//#define KL5KUSB105A_SR		
+//#define KL5KUSB105A_RI			/* Ring Indicator */
+
+/* vim: set ts=8 sts=8: */
+