59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* ****************************************************************************
|
|
* stream/builtin/libusb/write.c -- write to a libusb stream.
|
|
* Copyright (C) 2016-2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
|
|
*
|
|
* This file is part of libcasio.
|
|
* libcasio is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 3.0 of the License,
|
|
* or (at your option) any later version.
|
|
*
|
|
* libcasio is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See the GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with libcasio; if not, see <http://www.gnu.org/licenses/>.
|
|
* ************************************************************************* */
|
|
#include "libusb.h"
|
|
#ifndef LIBCASIO_DISABLED_LIBUSB
|
|
|
|
/**
|
|
* casio_libusb_write:
|
|
* Write using libusb cookie.
|
|
*
|
|
* @arg cookie the cookie.
|
|
* @arg data the source.
|
|
* @arg size the source size.
|
|
* @return the size written if > 0, or if < 0 the error code is -[returned value].
|
|
*/
|
|
|
|
ssize_t CASIO_EXPORT casio_libusb_write(cookie_libusb_t *cookie,
|
|
const unsigned char *data, size_t size)
|
|
{
|
|
int sent, libusberr;
|
|
|
|
/* Make the transfer. */
|
|
|
|
libusberr = libusb_bulk_transfer(cookie->_handle, ENDPOINT_OUT,
|
|
(unsigned char*)data, size, &sent, cookie->tmwrite);
|
|
switch (libusberr) {
|
|
case 0: break;
|
|
|
|
case LIBUSB_ERROR_PIPE:
|
|
case LIBUSB_ERROR_NO_DEVICE:
|
|
msg((ll_error, "The calculator is not here anymore :("));
|
|
return -(casio_error_nocalc);
|
|
|
|
default:
|
|
msg((ll_fatal, "libusb error was %d: %s", libusberr,
|
|
libusb_strerror(libusberr)));
|
|
return -(casio_error_unknown);
|
|
}
|
|
|
|
return (sent);
|
|
}
|
|
|
|
#endif
|