Add usbg_get_binding_target() to avoid direct binding
structure members access. Add also usbg_get_binding_name_len()
and usbg_get_binding_name() to allow getting binding name.
Signed-off-by: Krzysztof Opasiak <k.opasiak@xxxxxxxxxxx>
---
include/usbg/usbg.h | 23 +++++++++++++++++++++++
src/usbg.c | 15 +++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/include/usbg/usbg.h b/include/usbg/usbg.h
index 5b8f482..603a4a3 100644
--- a/include/usbg/usbg.h
+++ b/include/usbg/usbg.h
@@ -562,6 +562,29 @@ extern void usbg_set_config_string(struct config *c, int lang, char *string);
*/
extern int usbg_add_config_function(struct config *c, char *name, struct function *f);
+/**
+ * @brief Get target function of given binding
+ * @param b Binding between configuration and function
+ * @return Pointer to USB function which is target for this binding
+ */
+extern struct function *usbg_get_binding_target(struct binding *b);
+
+/**
+ * @brief Get binding name length
+ * @param b Binding which name length should be returned
+ * @return Length of name string or -1 if error occurred.
+ */
+extern size_t usbg_get_binding_name_len(struct binding *b);
+
+/**
+ * @brief Get binding name
+ * @param b Pointer to binding
+ * @param buf Buffer where name should be copied
+ * @param len Length of given buffer
+ * @return Pointer to destination or NULL if error occurred.
+ */
+extern char *usbg_get_binding_name(struct binding *b, char *buf, size_t len);
+
/* USB gadget setup and teardown */
/**
diff --git a/src/usbg.c b/src/usbg.c
index 9a461dd..b160822 100644
--- a/src/usbg.c
+++ b/src/usbg.c
@@ -1068,6 +1068,21 @@ int usbg_add_config_function(struct config *c, char *name, struct function *f)
return 0;
}
+struct function *usbg_get_binding_target(struct binding *b)
+{
+ return b ? b->target : NULL;
+}
+
+size_t usbg_get_binding_name_len(struct binding *b)
+{
+ return b ? strlen(b->name) : -1;
+}
+
+char *usbg_get_binding_name(struct binding *b, char *buf, size_t len)
+{
+ return b ? strncpy(buf, b->name, len) : NULL;
+}
+
int usbg_get_udcs(struct dirent ***udc_list)
{
return scandir("/sys/class/udc", udc_list, file_select, alphasort);
--
1.7.9.5
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