Changeset 1eee99f2 in mainline for uspace/lib/usbhid/src/hidparser.c

Timestamp:

2011-05-25T18:48:47Z (13 years ago)

Author:

Matej Klonfar <maklf@…>

Branches:

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

Children:

1d10ca1

Parents:

14e7959

Message:

usb hid report size in bytes available in report structure

File:

• uspace/lib/usbhid/src/hidparser.c (modified) (1 diff)

uspace/lib/usbhid/src/hidparser.c

@@ -95 +95 @@
         else {
                 return report_des->item_length;
+        }
+}
+
+/** Returns size of report of specified report id and type in bytes
+ *
+ * @param parser Opaque report parser structure
+ * @param report_id 
+ * @param type
+ * @return Number of items in specified report
+ */
+size_t usb_hid_report_byte_size(usb_hid_report_t *report, uint8_t report_id, 
+                           usb_hid_report_type_t type)
+{
+        usb_hid_report_description_t *report_des;
+
+        if(report == NULL) {
+                return 0;
+        }
+
+        report_des = usb_hid_report_find_description (report, report_id, type);
+        if(report_des == NULL){
+                return 0;
+        }
+        else {
+                return (report_des->bit_length + 7) / 8;
         }
 }