61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* io.h
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*
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* Copyright (C) 2005 Erik Gilling, all rights reserved
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef __io_h__
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#define __io_h__
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#include <string.h> // for strlen
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#include <unistd.h> // for usleep
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#define USB_VID_ATMEL 0x03eb
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#define USB_PID_SAMBA 0x6124
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struct io_driver {
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char *name;
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int (*io_init) (char *dev);
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int (*io_cleanup) (void);
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int (*io_write) (void *buff, int len);
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int (*io_read) (void *buff, int len);
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};
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int io_driver_register(struct io_driver *driver);
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struct io_driver *io_driver_at(int);
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void io_driver_activate(struct io_driver *driver);
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int io_init( char *dev );
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int io_cleanup( void );
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int io_write( void *buff, int len );
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int io_read( void *buff, int len );
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static inline int io_send_cmd( char *cmd, void *response, int response_len )
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{
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if( io_write( cmd, strlen( cmd ) ) < 0 ) {
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return -1;
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}
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usleep( 2000 );
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if( response_len == 0 ) {
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return 0;
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}
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if( io_read( response, response_len ) < 0 ) {
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return -1;
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}
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usleep( 2000 );
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return 0;
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}
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#endif /* __io_h__ */
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