Reduce size of buffer to maximum size supported by low-speed USB devi…

…ces.

Fossil-ID: SVN r2407

drivers/libhid.c

@@ -141,7 +141,7 @@ static int refresh_report_buffer(reportbuf_t *rbuf, hid_dev_handle_t udev, HIDDa
 {
 	int	id = pData->ReportID;
 	int	r;
-	unsigned char	buf[SMALLBUF];
+	unsigned char	buf[8];	/* Maximum size for low-speed USB devices */
 
 	if (rbuf->ts[id] + age > time(NULL)) {
 		/* buffered report is still good; nothing to do */
@@ -469,7 +469,7 @@ bool_t HIDSetItemValue(hid_dev_handle_t udev, const char *hidpath, double Value,
  */
 int HIDGetEvents(hid_dev_handle_t udev, HIDData_t **event, int eventsize)
 {
-	unsigned char	buf[SMALLBUF];
+	unsigned char	buf[8];	/* Maximum size for low-speed USB devices */
 	int		itemCount = 0;
 	int		buflen, r, i;
 	HIDData_t	*pData;