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--- 마소전략커맨더 [2009/11/06 10:12] – suapapa
+++ 마소전략커맨더 [2013/08/03 05:04] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====== 관련 파일 ======
+  * drivers/hiddev.c
+  * drivers/hid/usbhid/hid-pidff.c
+  * Documentation/usb/gadget_hid.txt
+====== HID report ======
+  * /dev/hidgX
+  * /dev/hidrawX
+====== references ======
+  *[[http://www.usb.org/developers/hidpage/|Usage Tables for Physical Interface Devices]]
+libusb
+<code c>
+int usb_control_msg(usb_dev_handle *dev, int requesttype, int request, int value, int index, char *bytes, int size, int timeout);
+</code>
+in kernel
+<code>
+/**
+ * usb_control_msg - Builds a control urb, sends it off and waits for completion
+ * @dev: pointer to the usb device to send the message to
+ * @pipe: endpoint "pipe" to send the message to
+ * @request: USB message request value
+ * @requesttype: USB message request type value
+ * @value: USB message value
+ * @index: USB message index value
+ * @data: pointer to the data to send
+ * @size: length in bytes of the data to send
+ * @timeout: time in msecs to wait for the message to complete before timing
+ *	out (if 0 the wait is forever)
+ */
+int usb_control_msg(struct usb_device *dev, unsigned int pipe, __u8 request,
+		    __u8 requesttype, __u16 value, __u16 index, void *data,
+		    __u16 size, int timeout)
+</code>
 ====== code practice ======
 ===== 깜박이는 속도 =====