1 files changed, 70 insertions, 0 deletions

diff --git a/lib/vusb/libs-host/hiddata.h b/lib/vusb/libs-host/hiddata.h
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+++ b/lib/vusb/libs-host/hiddata.h
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+/* Name: hiddata.h
+ * Author: Christian Starkjohann
+ * Creation Date: 2008-04-11
+ * Tabsize: 4
+ * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
+ * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
+ */
+
+#ifndef __HIDDATA_H_INCLUDED__
+#define __HIDDATA_H_INCLUDED__
+
+/*
+General Description:
+This module implements an abstraction layer for data transfer over HID feature
+requests. The implementation uses native Windows functions on Windows so that
+no driver installation is required and libusb on Unix. You must link the
+appropriate libraries in either case: "-lhid -lusb -lsetupapi" on Windows and
+`libusb-config --libs` on Unix.
+*/
+
+/* ------------------------------------------------------------------------ */
+
+#define USBOPEN_SUCCESS         0   /* no error */
+#define USBOPEN_ERR_ACCESS      1   /* not enough permissions to open device */
+#define USBOPEN_ERR_IO          2   /* I/O error */
+#define USBOPEN_ERR_NOTFOUND    3   /* device not found */
+
+/* ------------------------------------------------------------------------ */
+
+typedef struct usbDevice    usbDevice_t;
+/* Opaque data type representing the USB device. This can be a Windows handle
+ * or a libusb handle, depending on the backend implementation.
+ */
+
+/* ------------------------------------------------------------------------ */
+
+int usbhidOpenDevice(usbDevice_t **device, int vendorID, char *vendorName, int productID, char *productName, int usesReportIDs);
+/* This function opens a USB device. 'vendorID' and 'productID' are the numeric
+ * Vendor-ID and Product-ID of the device we want to open. If 'vendorName' and
+ * 'productName' are both not NULL, only devices with matching manufacturer-
+ * and product name strings are accepted. If the device uses report IDs,
+ * 'usesReportIDs' must be set to a non-zero value.
+ * Returns: If a matching device has been found, USBOPEN_SUCCESS is returned
+ * and '*device' is set to an opaque pointer representing the device. The
+ * device must be closed with usbhidCloseDevice(). If the device has not been
+ * found or opening failed, an error code is returned.
+ */
+void    usbhidCloseDevice(usbDevice_t *device);
+/* Every device opened with usbhidOpenDevice() must be closed with this function.
+ */
+int usbhidSetReport(usbDevice_t *device, char *buffer, int len);
+/* This function sends a feature report to the device. The report ID must be
+ * in the first byte of buffer and the length 'len' of the report is specified
+ * including this report ID. If no report IDs are used, buffer[0] must be set
+ * to 0 (dummy report ID).
+ * Returns: 0 on success, an error code otherwise.
+ */
+int usbhidGetReport(usbDevice_t *device, int reportID, char *buffer, int *len);
+/* This function obtains a feature report from the device. The requested
+ * report-ID is passed in 'reportID'. The caller must pass a buffer of the size
+ * of the expected report in 'buffer' and initialize the variable pointed to by
+ * 'len' to the total size of this buffer. Upon successful return, the report
+ * (prefixed with the report-ID) is in 'buffer' and the actual length of the
+ * report is returned in '*len'.
+ * Returns: 0 on success, an error code otherwise.
+ */
+
+/* ------------------------------------------------------------------------ */
+
+#endif /* __HIDDATA_H_INCLUDED__ */