include/analogy/context.h

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#ifndef __ANALOGY_CONTEXT__
#define __ANALOGY_CONTEXT__

#if defined(__KERNEL__) && !defined(DOXYGEN_CPP)

#include <analogy/os_facilities.h>

struct a4l_device;

struct a4l_context {

        /* This field is redundant with the following parameters;
           setting it at the head of the structure may save 
           useless operations */
        struct a4l_device *dev;
        rtdm_user_info_t *user_info;
        struct rtdm_dev_context *rtdm_cxt;
};
typedef struct a4l_context a4l_cxt_t;

#define a4l_get_minor(x) ((x)->rtdm_cxt->device->device_id)

#define a4l_init_cxt(c, u, x)                   \
    {                                                   \
        (x)->rtdm_cxt = c;                              \
        (x)->user_info = u;                             \
        (x)->dev = NULL;                                \
    }

#endif /* __KERNEL__ && !DOXYGEN_CPP */

#endif /* __ANALOGY_CONTEXT__ */

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