1 files changed, 67 insertions, 0 deletions
diff --git a/src/usb.h b/src/usb.h
new file mode 100644
index 0000000..9b093d0
--- /dev/null
+++ b/src/usb.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2012
+ * 	Lars-Dominik Braun <lars@6xq.net>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef _USB_H
+#define _USB_H
+
+#include <stdint.h>
+
+#include "device.h"
+#include "common.h"
+
+typedef enum {
+	HIDPP_PERROR_OK = 0, /* not an error */
+	HIDPP_PERROR_UNKNOWN = 1,
+	HIDPP_PERROR_INVALID_ARGUMENT = 2,
+	HIDPP_PERROR_OUT_OF_RANGE = 3,
+	HIDPP_PERROR_HWERROR = 4,
+	HIDPP_PERROR_LOGITECH_INTERNAL = 5,
+	HIDPP_PERROR_INVALID_FEATURE = 6,
+	HIDPP_PERROR_INVALID_FUNCTION = 7,
+	HIDPP_PERROR_BUSY = 8,
+	HIDPP_PERROR_UNSUPPORTED = 9,
+} hidppPacketError_t;
+
+#define HIDPP_MAX_PACKETLEN 32
+
+/* HID++ packet sent over USB */
+typedef struct {
+	uint8_t id;
+	hidppDeviceId_t devId;
+	uint8_t featureIdx;
+	uint8_t function;
+	uint8_t softwareId;
+	/* make sure we have enough room for at least one \0 too */
+	uint8_t args[HIDPP_MAX_PACKETLEN];
+	hidppPacketError_t error;
+} hidppPacket_t;
+
+void hidppUsbDeviceOpen (libusb_device * const dev, libusb_device_handle **handle);
+void hidppUsbDeviceClose (libusb_device_handle *handle);
+hidppReturn_t hidppUsbRequest (hidppDevice_t * const d,
+		const hidppFeatureId_t feature, const uint8_t function,
+		const uint8_t * const args, const size_t argsCount,
+		hidppPacket_t * const rp);
+
+#endif /* _USB_H */
+