Signed-off-by: Krzysztof Opasiak <k.opas...@samsung.com>
---
 examples/Makefile.am     |    3 +-
 examples/gadget-import.c |   79 ++++++++++++++++++++++++++++++++++++++++++++++
 src/usbg.c               |    6 ++--
 3 files changed, 84 insertions(+), 4 deletions(-)
 create mode 100644 examples/gadget-import.c

diff --git a/examples/Makefile.am b/examples/Makefile.am
index aeb0273..bf8b45d 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -1,8 +1,9 @@
-bin_PROGRAMS = show-gadgets gadget-acm-ecm gadget-vid-pid-remove gadget-ffs 
gadget-export
+bin_PROGRAMS = show-gadgets gadget-acm-ecm gadget-vid-pid-remove gadget-ffs 
gadget-export gadget-import
 gadget_acm_ecm_SOURCES = gadget-acm-ecm.c
 show_gadgets_SOURCES = show-gadgets.c
 gadget_vid_pid_remove_SOURCES = gadget-vid-pid-remove.c
 gadget_ffs_SOURCES = gadget-ffs.c
 gadget_export_SOURCE = gadget-export.c
+gadget_import_SOURCE = gadget-import.c
 AM_CPPFLAGS=-I../include/
 AM_LDFLAGS=-L../src/ -lusbg
diff --git a/examples/gadget-import.c b/examples/gadget-import.c
new file mode 100644
index 0000000..cf97d9c
--- /dev/null
+++ b/examples/gadget-import.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2014 Samsung Electronics
+ *
+ * Krzysztof Opasiak <k.opas...@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/**
+ * @file gadget-import.c
+ * @example gadget-import.c
+ * This is an example of how to import a gadget from file.
+ * Common reason of doing this is to create gadget base on schema
+ * from other devices or resurect gadget after reboot.
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <usbg/usbg.h>
+
+int main(int argc, char **argv)
+{
+       usbg_state *s;
+       usbg_gadget *g;
+       int ret = -EINVAL;
+       int usbg_ret;
+       FILE *input;
+
+       if (argc != 3) {
+               fprintf(stderr, "Usage: gadget-import gadget_name file_name\n");
+               return ret;
+       }
+
+       /* Prepare input file */
+       input = fopen(argv[2], "r");
+       if (!input) {
+               fprintf(stderr, "Error on fopen. Error: %s\n", strerror(errno));
+               goto out1;
+       }
+
+       /* Do gadget exporting */
+       usbg_ret = usbg_init("/sys/kernel/config", &s);
+       if (usbg_ret != USBG_SUCCESS) {
+               fprintf(stderr, "Error on USB gadget init\n");
+               fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+                               usbg_strerror(usbg_ret));
+               goto out2;
+       }
+
+       usbg_ret = usbg_import_gadget(s, input, argv[1], NULL);
+       if (usbg_ret != USBG_SUCCESS) {
+               fprintf(stderr, "Error on import gadget\n");
+               fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+                               usbg_strerror(usbg_ret));
+               if (usbg_ret == USBG_ERROR_INVALID_FORMAT)
+                       fprintf(stderr, "Line: %d. Error: %s\n",
+                               usbg_get_gadget_import_error_line(s),
+                               usbg_get_gadget_import_error_text(s));
+               goto out3;
+       }
+
+       ret = 0;
+
+out3:
+       usbg_cleanup(s);
+out2:
+       fclose(input);
+out1:
+       return ret;
+}
diff --git a/src/usbg.c b/src/usbg.c
index f22dd80..ffd3c88 100644
--- a/src/usbg.c
+++ b/src/usbg.c
@@ -4213,7 +4213,7 @@ const char *usbg_get_func_import_error_text(usbg_gadget 
*g)
        return config_error_text(g->last_failed_import);
 }
 
-const char *usbg_get_func_import_error_line(usbg_gadget *g)
+int usbg_get_func_import_error_line(usbg_gadget *g)
 {
        if (!g || !g->last_failed_import)
                return -1;
@@ -4229,7 +4229,7 @@ const char *usbg_get_config_import_error_text(usbg_gadget 
*g)
        return config_error_text(g->last_failed_import);
 }
 
-const char *usbg_get_config_import_error_line(usbg_gadget *g)
+int usbg_get_config_import_error_line(usbg_gadget *g)
 {
        if (!g || !g->last_failed_import)
                return -1;
@@ -4245,7 +4245,7 @@ const char *usbg_get_gadget_import_error_text(usbg_state 
*s)
        return config_error_text(s->last_failed_import);
 }
 
-const char *usbg_get_gadget_import_error_line(usbg_state *s)
+int usbg_get_gadget_import_error_line(usbg_state *s)
 {
        if (!s || !s->last_failed_import)
                return -1;
-- 
1.7.9.5

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