diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/8255.h')
-rw-r--r-- | drivers/staging/comedi/drivers/8255.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/8255.h b/drivers/staging/comedi/drivers/8255.h new file mode 100644 index 000000000000..979311b99275 --- /dev/null +++ b/drivers/staging/comedi/drivers/8255.h @@ -0,0 +1,57 @@ +/* + module/8255.h + Header file for 8255 + + COMEDI - Linux Control and Measurement Device Interface + Copyright (C) 1998 David A. Schleef <ds@schleef.org> + + This program 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 + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef _8255_H +#define _8255_H + +#include "../comedidev.h" + +#if defined(CONFIG_COMEDI_8255) || defined(CONFIG_COMEDI_8255_MODULE) + +int subdev_8255_init(struct comedi_device * dev, struct comedi_subdevice * s, + int (*cb) (int, int, int, unsigned long), unsigned long arg); +int subdev_8255_init_irq(struct comedi_device * dev, struct comedi_subdevice * s, + int (*cb) (int, int, int, unsigned long), unsigned long arg); +void subdev_8255_cleanup(struct comedi_device * dev, struct comedi_subdevice * s); +void subdev_8255_interrupt(struct comedi_device * dev, struct comedi_subdevice * s); + +#else + +static inline int subdev_8255_init(struct comedi_device * dev, struct comedi_subdevice * s, + void *x, unsigned long y) +{ + printk("8255 support not configured -- disabling subdevice\n"); + + s->type = COMEDI_SUBD_UNUSED; + + return 0; +} + +static inline void subdev_8255_cleanup(struct comedi_device * dev, + struct comedi_subdevice * s) +{ +} + +#endif + +#endif |