diff --git a/include/patty/kiss.h b/include/patty/kiss.h
index 2fb34bc..b7ea23a 100644
--- a/include/patty/kiss.h
+++ b/include/patty/kiss.h
@@ -27,6 +27,11 @@ enum patty_kiss_command {
     PATTY_KISS_RETURN      = 0xff
 };
 
+ssize_t patty_kiss_frame_send(int fd,
+                              const void *buf,
+                              size_t len,
+                              int port);
+
 typedef struct _patty_kiss_tnc patty_kiss_tnc;
 
 patty_kiss_tnc *patty_kiss_tnc_new_fd(int fd);
diff --git a/src/kiss.c b/src/kiss.c
index 3dedd43..fb6502b 100644
--- a/src/kiss.c
+++ b/src/kiss.c
@@ -42,6 +42,88 @@ struct _patty_kiss_tnc {
     ssize_t readlen;
 };
 
+static inline ssize_t write_byte(int fd, uint8_t c) {
+    return write(fd, &c, sizeof(c));
+}
+
+static inline ssize_t write_start(int fd,
+                                  enum patty_kiss_command command,
+                                  int port) {
+    uint8_t start[2] = {
+        PATTY_KISS_FEND,
+        ((port & 0x0f) << 4) | (command & 0x0f)
+    };
+
+    return write(fd, start, sizeof(start));
+}
+
+static uint8_t escape_fend[2] = { PATTY_KISS_FESC, PATTY_KISS_TFEND };
+static uint8_t escape_fesc[2] = { PATTY_KISS_FESC, PATTY_KISS_TFESC };
+
+ssize_t patty_kiss_frame_send(int fd,
+                             const void *buf,
+                             size_t len,
+                             int port) {
+    size_t i, start = 0, end = 0;
+
+    if (write_start(fd, PATTY_KISS_DATA, port) < 0) {
+        goto error_io;
+    }
+
+    for (i=0; i<len; i++) {
+        uint8_t c = ((uint8_t *)buf)[i];
+        uint8_t *escape = NULL;
+
+        switch (c) {
+            case PATTY_KISS_FEND:
+                escape = escape_fend;
+                break;
+
+            case PATTY_KISS_FESC:
+                escape = escape_fesc;
+                break;
+
+            default:
+                end = i + 1;
+
+                break;
+        }
+
+        if (escape) {
+            if (write(fd, ((uint8_t *)buf) + start, end - start) < 0) {
+                goto error_io;
+            }
+
+            if (write(fd, escape, 2) < 0) {
+                goto error_io;
+            }
+
+            escape = NULL;
+            start  = i + 1;
+            end    = start;
+        }
+    }
+
+    if (end - start) {
+        if (write(fd, ((uint8_t *)buf) + start, end - start) < 0) {
+            goto error_io;
+        }
+    }
+
+    if (write_byte(fd, PATTY_KISS_FEND) < 0) {
+        goto error_io;
+    }
+
+    if (tcdrain(fd) < 0) {
+        goto error_io;
+    }
+
+    return len;
+
+error_io:
+    return -1;
+}
+
 patty_kiss_tnc *patty_kiss_tnc_new_fd(int fd) {
     patty_kiss_tnc *tnc;
 
@@ -304,84 +386,9 @@ error_io:
     return -1;
 }
 
-static inline ssize_t write_byte(int fd, uint8_t c) {
-    return write(fd, &c, sizeof(c));
-}
-
-static inline ssize_t write_start(int fd,
-                                  enum patty_kiss_command command,
-                                  int port) {
-    uint8_t start[2] = {
-        PATTY_KISS_FEND,
-        ((port & 0x0f) << 4) | (command & 0x0f)
-    };
-
-    return write(fd, start, sizeof(start));
-}
-
-static uint8_t escape_fend[2] = { PATTY_KISS_FESC, PATTY_KISS_TFEND };
-static uint8_t escape_fesc[2] = { PATTY_KISS_FESC, PATTY_KISS_TFESC };
-
 ssize_t patty_kiss_tnc_send(patty_kiss_tnc *tnc,
                             const void *buf,
                             size_t len,
                             int port) {
-    size_t i, start = 0, end = 0;
-
-    if (write_start(tnc->fd, PATTY_KISS_DATA, port) < 0) {
-        goto error_io;
-    }
-
-    for (i=0; i<len; i++) {
-        uint8_t c = ((uint8_t *)buf)[i];
-        uint8_t *escape = NULL;
-
-        switch (c) {
-            case PATTY_KISS_FEND:
-                escape = escape_fend;
-                break;
-
-            case PATTY_KISS_FESC:
-                escape = escape_fesc;
-                break;
-
-            default:
-                end = i + 1;
-
-                break;
-        }
-
-        if (escape) {
-            if (write(tnc->fd, ((uint8_t *)buf) + start, end - start) < 0) {
-                goto error_io;
-            }
-
-            if (write(tnc->fd, escape, 2) < 0) {
-                goto error_io;
-            }
-
-            escape = NULL;
-            start  = i + 1;
-            end    = start;
-        }
-    }
-
-    if (end - start) {
-        if (write(tnc->fd, ((uint8_t *)buf) + start, end - start) < 0) {
-            goto error_io;
-        }
-    }
-
-    if (write_byte(tnc->fd, PATTY_KISS_FEND) < 0) {
-        goto error_io;
-    }
-
-    if (tcdrain(tnc->fd) < 0) {
-        goto error_io;
-    }
-
-    return len;
-
-error_io:
-    return -1;
+    return patty_kiss_frame_send(tnc->fd, buf, len, port);
 }