Fix K3/K3S VFOB mode/bandwidth setting

https://github.com/Hamlib/Hamlib/issues/1224

rigs/kenwood/k3.c

@@ -190,7 +190,7 @@ const struct rig_caps k3_caps =
     RIG_MODEL(RIG_MODEL_K3),
     .model_name =       "K3",
     .mfg_name =     "Elecraft",
-    .version =      BACKEND_VER ".25",
+    .version =      BACKEND_VER ".26",
     .copyright =        "LGPL",
     .status =       RIG_STATUS_STABLE,
     .rig_type =     RIG_TYPE_TRANSCEIVER,
@@ -343,7 +343,7 @@ const struct rig_caps k3s_caps =
     RIG_MODEL(RIG_MODEL_K3S),
     .model_name =       "K3S",
     .mfg_name =     "Elecraft",
-    .version =      BACKEND_VER ".20",
+    .version =      BACKEND_VER ".21",
     .copyright =        "LGPL",
     .status =       RIG_STATUS_STABLE,
     .rig_type =     RIG_TYPE_TRANSCEIVER,
@@ -960,15 +960,21 @@ int k3_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     int err;
     rmode_t temp_m;
     pbwidth_t temp_w;
-    char *cmd_mode = "DT";
+    char *cmd_data = "DT";
     char *cmd_bw = "BW";
     int cmd_bw_len = 6;
+    struct kenwood_priv_data *priv = rig->state.priv;
 
     rig_debug(RIG_DEBUG_VERBOSE, "%s called vfo=%s\n", __func__, rig_strvfo(vfo));
 
-    if (vfo == RIG_VFO_B && rig->caps->rig_model == RIG_MODEL_K4)
+    if ((priv->is_k3 || priv->is_k3s || priv->is_k4 || priv->is_k4d
+            || priv->is_k4hd)  && vfo == RIG_VFO_B)
     {
-        cmd_mode = "DT$";
+        if (!(priv->is_k3 || priv->is_k3s))
+        {
+            cmd_data = "DT$";
+        }
+
         cmd_bw = "BW$";
         cmd_bw_len = 7;
 
@@ -993,8 +999,8 @@ int k3_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
 
     if (temp_m == RIG_MODE_RTTY)
     {
-        err = kenwood_safe_transaction(rig, cmd_mode, buf, KENWOOD_MAX_BUF_LEN,
+        err = kenwood_safe_transaction(rig, cmd_data, buf, KENWOOD_MAX_BUF_LEN,
-                                       strlen(cmd_mode) + 1);
+                                       strlen(cmd_data) + 1);
 
         if (err != RIG_OK)
         {
@@ -1021,8 +1027,8 @@ int k3_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     }
     else if (temp_m == RIG_MODE_RTTYR)
     {
-        err = kenwood_safe_transaction(rig, cmd_mode, buf, KENWOOD_MAX_BUF_LEN,
+        err = kenwood_safe_transaction(rig, cmd_data, buf, KENWOOD_MAX_BUF_LEN,
-                                       strlen(cmd_mode) + 1);
+                                       strlen(cmd_data) + 1);
 
         if (err != RIG_OK)
         {

rigs/kenwood/kenwood.c

@@ -2640,8 +2640,8 @@ int kenwood_get_mode(RIG *rig, vfo_t vfo, rmode_t *mode, pbwidth_t *width)
     }
     else
     {
-        if (vfo == RIG_VFO_B
+        if ((priv->is_k3 || priv->is_k3s || priv->is_k4 || priv->is_k4d
-                && rig->caps->rig_model == RIG_MODEL_K4) // K4 new MD$ command for VFOB
+                || priv->is_k4hd)  && vfo == RIG_VFO_B)
         {
             SNPRINTF(cmd, sizeof(cmd), "MD$");
             offs = 3;

rigs/kenwood/kenwood.h

@@ -29,7 +29,7 @@
 #include "misc.h"
 #include "idx_builtin.h"
 
-#define BACKEND_VER "20230115"
+#define BACKEND_VER "20230222"
 
 #define EOM_KEN ';'
 #define EOM_TH '\r'