c84bbd93a3
The USB communication is now also implemented as an I/O stream
transport. Unlike most I/O devices, USB communication supports multiple
interfaces and endpoints. This requires some some special care:
In the general case, autodetection isn't really possible without
additional knowledge. Hence the need for the filter parameters to pass
this kind of information.
The implementation assumes two bulk endpoints for the standard
read/write interface. Communication with the control endpoint is
supported through the new DC_IOCTL_USB_CONTROL_{READ,WRITE} ioctl's.
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
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* libdivecomputer
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*
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* Copyright (C) 2017 Jef Driesen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef DC_DESCRIPTOR_PRIVATE_H
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#define DC_DESCRIPTOR_PRIVATE_H
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#include <libdivecomputer/descriptor.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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typedef struct dc_usb_desc_t {
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unsigned short vid;
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unsigned short pid;
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} dc_usb_desc_t;
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typedef struct dc_usb_params_t {
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unsigned int interface;
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unsigned char endpoint_in;
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unsigned char endpoint_out;
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} dc_usb_params_t;
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int
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dc_descriptor_filter (dc_descriptor_t *descriptor, dc_transport_t transport, const void *userdata, void *params);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* DC_DESCRIPTOR_PRIVATE_H */
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