Changeset 0bd4810c in mainline

Timestamp:

2011-03-11T16:24:52Z (13 years ago)

Author:

Matej Klonfar <maklf@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

33382a9

Parents:

9d9ffdd

Message:

Buffer length of parsed input report

Location:

uspace/lib/usb

Files:

• include/usb/classes/hidparser.h (modified) (2 diffs)
• src/hidparser.c (modified) (1 diff)

uspace/lib/usb/include/usb/classes/hidparser.h

@@ -64 +64 @@
 
 /**
+ * Description of path of usage pages and usages in report descriptor
+ */
+typedef struct {
+        int32_t usage_page;
+} usb_hid_report_path_t;
+
+/**
  * Description of report items
  */
@@ -185 +192 @@
     const usb_hid_report_in_callbacks_t *callbacks, void *arg);
 
+int usb_hid_report_input_length(const usb_hid_report_parser_t *parser,
+        const usb_hid_report_path_t *path);
+
 
 void usb_hid_free_report_parser(usb_hid_report_parser_t *parser);

uspace/lib/usb/src/hidparser.c

@@ -719 +719 @@
         
 }
+
+int usb_hid_report_input_length(const usb_hid_report_parser_t *parser,
+        const usb_hid_report_path_t *path)
+{
+        int ret = 0;
+        link_t *item;
+        usb_hid_report_item_t *report_item;
+
+        item = (&parser->input)->next;
+        while(&parser->input != item) {
+                report_item = list_get_instance(item, usb_hid_report_item_t, link);
+                if(report_item->usage_page == path->usage_page) {
+                        ret += report_item->count;
+                }
+
+                item = item->next;
+        } 
+
+        return ret;
+}
+
+
+
 /**
  * @}