Removing gadget/config/function/binding functionality
has been added to API so add example of how to use it.
Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
---
examples/Makefile.am | 3 +-
examples/gadget-vid-pid-remove.c | 114 ++++++++++++++++++++++++++++++++++++++
include/usbg/usbg.h | 1 -
3 files changed, 116 insertions(+), 2 deletions(-)
create mode 100644 examples/gadget-vid-pid-remove.c
diff --git a/examples/Makefile.am b/examples/Makefile.am
index f9f9407..9fc235a 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -1,5 +1,6 @@
-bin_PROGRAMS = show-gadgets gadget-acm-ecm
+bin_PROGRAMS = show-gadgets gadget-acm-ecm gadget-vid-pid-remove
gadget_acm_ecm_SOURCES = gadget-acm-ecm.c
show_gadgets_SOURCES = show-gadgets.c
+gadget_vid_pid_remove_SOURCES = gadget-vid-pid-remove.c
AM_CPPFLAGS=-I../include/
AM_LDFLAGS=-L../src/ -lusbg
diff --git a/examples/gadget-vid-pid-remove.c b/examples/gadget-vid-pid-remove.c
new file mode 100644
index 0000000..25e763f
--- /dev/null
+++ b/examples/gadget-vid-pid-remove.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2014 Samsung Electronics
+ *
+ * Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
+ *
+ * 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-vid-pid-remove.c
+ * @example gadget-vid-pid-remove.c
+ * This is an example of how to find and remove an gadget device with given
+ * Vendor ID and product ID.
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <usbg/usbg.h>
+
+#define VENDOR 0x1d6b
+#define PRODUCT 0x0104
+
+int remove_gadget(usbg_gadget *g)
+{
+ int usbg_ret;
+ char udc[USBG_MAX_STR_LENGTH];
+
+ /* Check if gadget is enabled */
+ usbg_ret = usbg_get_gadget_udc(g, udc, USBG_MAX_STR_LENGTH);
+ if (usbg_ret != USBG_SUCCESS) {
+ fprintf(stderr, "Error on USB get gadget udc\n");
+ fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+ usbg_strerror(usbg_ret));
+ goto out;
+ }
+
+ /* If gadget is enable we have to disable it first */
+ if (udc[0] != '\0') {
+ usbg_ret = usbg_disable_gadget(g);
+ if (usbg_ret != USBG_SUCCESS) {
+ fprintf(stderr, "Error on USB disable gadget udc\n");
+ fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+ usbg_strerror(usbg_ret));
+ goto out;
+ }
+ }
+
+ /* Remove gadget with USBG_RM_RECURSE flag to remove
+ * also its configurations, functions and strings */
+ usbg_ret = usbg_rm_gadget(g, USBG_RM_RECURSE);
+ if (usbg_ret != USBG_SUCCESS) {
+ fprintf(stderr, "Error on USB gadget remove\n");
+ fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+ usbg_strerror(usbg_ret));
+ }
+
+out:
+ return usbg_ret;
+}
+
+int main(void)
+{
+ int usbg_ret;
+ int ret = -EINVAL;
+ usbg_state *s;
+ usbg_gadget *g;
+ usbg_gadget_attrs g_attrs;
+
+ usbg_ret = usbg_init("/sys/kernel/config", &s);
+ if (usbg_ret != USBG_SUCCESS) {
+ fprintf(stderr, "Error on USB state init\n");
+ fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+ usbg_strerror(usbg_ret));
+ goto out1;
+ }
+
+ g = usbg_get_first_gadget(s);
+ while (g != NULL) {
+ /* Get current gadget attrs to be compared */
+ usbg_ret = usbg_get_gadget_attrs(g, &g_attrs);
+ if (usbg_ret != USBG_SUCCESS) {
+ fprintf(stderr, "Error on USB get gadget attrs\n");
+ fprintf(stderr, "Error: %s : %s\n", usbg_error_name(usbg_ret),
+ usbg_strerror(usbg_ret));
+ goto out2;
+ }
+
+ /* Compare attrs with given values and remove if suitable */
+ if (g_attrs.idVendor == VENDOR && g_attrs.idProduct == PRODUCT) {
+ usbg_gadget *g_next = usbg_get_next_gadget(g);
+
+ usbg_ret = remove_gadget(g);
+ if (usbg_ret != USBG_SUCCESS)
+ goto out2;
+
+ g = g_next;
+ } else {
+ g = usbg_get_next_gadget(g);
+ }
+ }
+
+out2:
+ usbg_cleanup(s);
+out1:
+ return ret;
+}
diff --git a/include/usbg/usbg.h b/include/usbg/usbg.h
index 282485b..cb1cdcb 100644
--- a/include/usbg/usbg.h
+++ b/include/usbg/usbg.h
@@ -25,7 +25,6 @@
/**
* @file include/usbg/usbg.h
- * @todo Add usbg_remove_[gadget|config|function|binding] APIs
* @todo Clean up static buffers in structures
*/
--
1.7.9.5
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