diff --git a/commandline/canbus.c b/commandline/canbus.c
index 7da45c1..6a082cd 100644
--- a/commandline/canbus.c
+++ b/commandline/canbus.c
@@ -41,7 +41,7 @@ This file should provide next functions:
   int canbus_read(CANmesg *mesg) - blocking read (broadcast if ID==0 or only from given ID) from can bus, return 0 if all OK
 */
 
-static TTY_descr *dev = NULL;  // shoul be global to restore if die
+static sl_tty_t *dev = NULL;  // shoul be global to restore if die
 static int serialspeed = 115200; // speed to open serial device
 static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
 
@@ -53,7 +53,7 @@ static char *read_string();
  * @param length   - buffer len
  * @return amount of bytes read
  */
-static int read_ttyX(TTY_descr *d){
+static int read_ttyX(sl_tty_t *d){
     if(!d || d->comfd < 0) return -1;
     size_t L = 0;
     ssize_t l;
@@ -93,11 +93,11 @@ static int ttyWR(const char *buff, int len){
 #ifdef EBUG
     int _U_ n = write(STDERR_FILENO, buff, len);
     fprintf(stderr, "\n");
-    double t0 = dtime();
+    double t0 = sl_dtime();
 #endif
-    int w = write_tty(dev->comfd, buff, (size_t)len);
-    if(!w) w = write_tty(dev->comfd, "\n", 1);
-    DBG("Written, dt=%g", dtime() - t0);
+    int w = sl_tty_write(dev->comfd, buff, (size_t)len);
+    if(!w) w = sl_tty_write(dev->comfd, "\n", 1);
+    DBG("Written, dt=%g", sl_dtime() - t0);
     /*
     int errctr = 0;
     while(1){
@@ -111,12 +111,12 @@ static int ttyWR(const char *buff, int len){
         }else break;
     }*/
     pthread_mutex_unlock(&mutex);
-    DBG("Success, dt=%g", dtime() - t0);
+    DBG("Success, dt=%g", sl_dtime() - t0);
     return w;
 }
 
 void canbus_close(){
-    if(dev) close_tty(&dev);
+    if(dev) sl_tty_close(&dev);
 }
 
 void setserialspeed(int speed){
@@ -132,11 +132,11 @@ int canbus_open(const char *devname){
         WARNX("canbus_open(): need device name");
         return 1;
     }
-    if(dev) close_tty(&dev);
-    dev = new_tty((char*)devname, serialspeed, BUFLEN);
+    if(dev) sl_tty_close(&dev);
+    dev = sl_tty_new((char*)devname, serialspeed, BUFLEN);
     if(dev){
-        if(!tty_open(dev, 1)) // blocking open
-            close_tty(&dev);
+        if(!sl_tty_open(dev, 1)) // blocking open
+            sl_tty_close(&dev);
     }
     if(!dev){
         return 1;
@@ -193,7 +193,7 @@ static char *read_string(){
         return ptr;
     }
     ptr = buf;
-    double d0 = dtime();
+    double d0 = sl_dtime();
     do{
         if((l = read_ttyX(dev))){
             if(l < 0){
@@ -210,9 +210,9 @@ static char *read_string(){
                 DBG("Newline detected");
                 break;
             }
-            d0 = dtime();
+            d0 = sl_dtime();
         }
-    }while(dtime() - d0 < WAIT_TMOUT && LL);
+    }while(sl_dtime() - d0 < WAIT_TMOUT && LL);
     if(r){
         buf[r] = 0;
         optr = strchr(buf, '\n');
@@ -226,7 +226,7 @@ static char *read_string(){
             optr = NULL;
             return NULL;
         }
-        DBG("buf: %s, time: %g", buf, dtime() - d0);
+        DBG("buf: %s, time: %g", buf, sl_dtime() - d0);
         return buf;
     }
     return NULL;
@@ -254,14 +254,14 @@ void showM(CANmesg *m){
 int canbus_read(CANmesg *mesg){
     if(!mesg) return 1;
     pthread_mutex_lock(&mutex);
-    double t0 = dtime();
+    double t0 = sl_dtime();
     int ID = mesg->ID;
     char *ans;
     CANmesg *m;
-    while(dtime() - t0 < T_POLLING_TMOUT){ // read answer
+    while(sl_dtime() - t0 < T_POLLING_TMOUT){ // read answer
         if((ans = read_string())){ // parse new data
             if((m = parseCANmesg(ans))){
-                DBG("Got canbus message (dT=%g):", dtime() - t0);
+                DBG("Got canbus message (dT=%g):", sl_dtime() - t0);
 #ifdef EBUG
                 showM(m);
 #endif
diff --git a/commandline/canopen.c b/commandline/canopen.c
index a9a8286..f648d85 100644
--- a/commandline/canopen.c
+++ b/commandline/canopen.c
@@ -163,8 +163,8 @@ static SDO *getSDOans(uint16_t idx, uint8_t subidx, uint8_t NID){
     FNAME();
     CANmesg mesg;
     SDO *sdo = NULL;
-    double t0 = dtime();
-    while(dtime() - t0 < T_POLLING_TMOUT){
+    double t0 = sl_dtime();
+    while(sl_dtime() - t0 < T_POLLING_TMOUT){
         mesg.ID = TSDO_COBID | NID; // read only from given ID
         if(canbus_read(&mesg)){
             DBG("NO CAN data");
@@ -193,9 +193,9 @@ static SDO *getSDOans(uint16_t idx, uint8_t subidx, uint8_t NID){
  */
 SDO *readSDOvalue(uint16_t idx, uint8_t subidx, uint8_t NID){
     FNAME();
-    double t0 = dtime();
+    double t0 = sl_dtime();
     SDO *sdo = NULL;
-    for(int i = 0; i < NTRIES && dtime() - t0 < SDO_ANS_TIMEOUT; ++i){
+    for(int i = 0; i < NTRIES && sl_dtime() - t0 < SDO_ANS_TIMEOUT; ++i){
         DBG("Try %d ...", i);
         if(ask2read(idx, subidx, NID)){
             DBG("Can't initiate upload");
diff --git a/commandline/cmdlnopts.c b/commandline/cmdlnopts.c
index 078bcd8..6e6b4de 100644
--- a/commandline/cmdlnopts.c
+++ b/commandline/cmdlnopts.c
@@ -56,7 +56,7 @@ static glob_pars const Gdefault = {
  * Define command line options by filling structure:
  *  name        has_arg     flag    val     type        argptr              help
 */
-static myoption cmdlnopts[] = {
+static sl_option_t cmdlnopts[] = {
 // common options
     {"help",    NO_ARGS,    NULL,   'h',    arg_int,    APTR(&help),        _("show this help")},
     {"device",  NEED_ARG,   NULL,   'd',    arg_string, APTR(&G.device),    _("serial device name (default: " DEFAULT_PORTDEV ")")},
@@ -99,14 +99,14 @@ glob_pars *parse_args(int argc, char **argv){
     char helpstring[1024], *hptr = helpstring;
     snprintf(hptr, hlen, "Usage: %%s [args]\n\n\tWhere args are:\n");
     // format of help: "Usage: progname [args]\n"
-    change_helpstring(helpstring);
+    sl_helpstring(helpstring);
     // parse arguments
-    parseargs(&argc, &argv, cmdlnopts);
-    if(help) showhelp(-1, cmdlnopts);
+    sl_parseargs(&argc, &argv, cmdlnopts);
+    if(help) sl_showhelp(-1, cmdlnopts);
     if(argc > 0){
         WARNX("Extra arguments: ");
         for (i = 0; i < argc; i++) fprintf(stderr, "\t%s\n", argv[i]);
-        showhelp(-1, cmdlnopts);
+        sl_showhelp(-1, cmdlnopts);
     }
     return &G;
 }
diff --git a/commandline/main.c b/commandline/main.c
index d8b1b5f..f2112bc 100644
--- a/commandline/main.c
+++ b/commandline/main.c
@@ -170,7 +170,7 @@ static inline void wait_busy(){
 }
 
 int main(int argc, char *argv[]){
-    initial_setup();
+    sl_init();
     GP = parse_args(argc, argv);
     if(GP->verblevel) maxmesglevl(GP->verblevel);
     if(GP->checkfile){ // just check and exit
@@ -197,7 +197,7 @@ int main(int argc, char *argv[]){
     }
     if(GP->enableESW && GP->disableESW) ERRX("Enable & disable ESW can't meet together");
 
-    check4running(NULL, GP->pidfile);
+    sl_check4running(NULL, GP->pidfile);
     signal(SIGTERM, signals); // kill (-15) - quit
     signal(SIGHUP, SIG_IGN);  // hup - ignore
     signal(SIGINT, signals);  // ctrl+C - quit
@@ -205,7 +205,7 @@ int main(int argc, char *argv[]){
     signal(SIGTSTP, SIG_IGN); // ignore ctrl+Z
 
     if(GP->logfile){
-        sl_loglevel l = LOGLVL + GP->verblevel;
+        sl_loglevel_e l = LOGLVL + GP->verblevel;
         if(l > LOGLEVEL_ANY) l = LOGLEVEL_ANY;
         OPENLOG(GP->logfile, l, 1);
         LOGMSG(("Start application..."));