1 files changed, 92 insertions, 0 deletions
diff --git a/backend/epkowa_ip_api.h b/backend/epkowa_ip_api.h
new file mode 100644
index 0000000..0e3f840
--- /dev/null
+++ b/backend/epkowa_ip_api.h
@@ -0,0 +1,92 @@
+/* epkowa_ip_api.h -- for scanners that don't speak EPSON ESC/I natively
+   Copyright (C) 2005  SEIKO EPSON CORPORATION
+
+   This file is part of the EPKOWA SANE backend.
+   It declares the backend's "Interpreter" interface.
+
+   The EPKOWA SANE backend is free software.
+   You can redistribute it and/or modify it under the terms of the GNU
+   General Public License as published by the Free Software Foundation;
+   either version 2 of the License or at your option any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY;  without even the implied warranty of FITNESS
+   FOR A PARTICULAR PURPOSE or MERCHANTABILITY.
+   See the GNU General Public License for more details.
+
+   You should have received a verbatim copy of the GNU General Public
+   License along with this program; if not, write to:
+
+       Free Software Foundation, Inc.
+       59 Temple Place, Suite 330
+       Boston, MA  02111-1307  USA
+
+   Linking the EPKOWA SANE backend statically or dynamically with
+   other modules is making a combined work based on the EPKOWA SANE
+   backend.  Thus, the terms and conditions of the GNU General Public
+   License cover the whole combination.
+
+   As a special exception, the copyright holders of the EPKOWA SANE
+   backend give you permission to link the EPKOWA SANE backend with
+   independent modules that communicate with the EPKOWA SANE backend
+   solely through the "Interpreter" interface, regardless of the
+   license terms of these independent modules, and to copy and
+   distribute the resulting combined work under terms of your choice,
+   provided that every copy of the combined work is accompanied by a
+   complete copy of the source code of the EPKOWA SANE backend (the
+   version of the EPKOWA SANE backend used to produce the combined
+   work), being distributed under the terms of the GNU General Public
+   License plus this exception.  An independent module is a module
+   which is not derived from or based on the EPKOWA SANE backend.
+
+   Note that people who make modified versions of the EPKOWA SANE
+   backend are not obligated to grant this special exception for their
+   modified versions; it is their choice whether to do so.  The GNU
+   General Public License gives permission to release a modified
+   version without this exception; this exception also makes it
+   possible to release a modified version which carries forward this
+   exception.
+ */
+
+#ifndef epkowa_ip_api_h_included
+#define epkowa_ip_api_h_included
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef ssize_t io_callback (void *buffer, size_t length);
+typedef ssize_t ctrl_callback (size_t request_type, size_t request,
+                               size_t value, size_t index,
+                               size_t size, void *buffer);
+
+bool int_init (int fd, io_callback *read, io_callback *write);
+bool int_init_with_ctrl (int fd, io_callback *read, io_callback *write,
+                         ctrl_callback *ctrl);
+void int_fini (void);
+
+int int_read  (void *buffer, size_t length);
+int int_write (void *buffer, size_t length);
+
+void int_power_saving_mode (void);
+
+int  function_s_0 (unsigned int offset,
+		   unsigned int width,
+		   unsigned int resolution,
+		   unsigned int opt_resolution,
+		   double * table);
+
+void function_s_1 (uint8_t *in_buf, uint8_t *out_buf,
+		   unsigned int width, bool color, double *table);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* !epkowa_ip_api_h_included */