Dumt C spgsml....

void		*platform_data;

struct device {
struct device		*parent;

struct device_private	*p;

struct kobject kobj;
const char		*init_name; /* initial name of the device */
struct device_type	*type;

struct mutex		mutex;	/* mutex to synchronize calls to
* its driver.
*/

struct bus_type	*bus;		/* type of bus device is on */
struct device_driver *driver;	/* which driver has allocated this
device */
void		*platform_data;	/* Platform specific data, device
core doesn't touch it */
struct dev_pm_info	power;

#ifdef CONFIG_NUMA
int		numa_node;	/* NUMA node this device is close to */
#endif
u64		*dma_mask;	/* dma mask (if dma'able device) */
u64		coherent_dma_mask;/* Like dma_mask, but for
alloc_coherent mappings as
not all hardware supports
64 bit addresses for consistent
allocations such descriptors. */

struct device_dma_parameters *dma_parms;

struct list_head	dma_pools;	/* dma pools (if dma'ble) */

struct dma_coherent_mem	*dma_mem; /* internal for coherent mem
override */
/* arch specific additions */
struct dev_archdata	archdata;
#ifdef CONFIG_OF
struct device_node	*of_node;
#endif

dev_t			devt;	/* dev_t, creates the sysfs "dev" */

spinlock_t		devres_lock;
struct list_head	devres_head;

struct klist_node	knode_class;
struct class		*class;
const struct attribute_group **groups;	/* optional groups */

void	(*release)(struct device *dev);
};

lorenzen (4) skrev:

Hvad er dit spørgsmål helt præcist?

static struct device mxc_irda_dev = {
.platform_data = NULL ,
};

Qw_freak (7) skrev:

Mere spørgsmål

Min driver skal nu benytte sig af netop platform_data. hvordan angiver jeg den i min struct??

static struct device mxc_irda_dev = {
.platform_data = NULL ,
};

virker ikke

Mamad (moveax1ret) (8) skrev:

er mxc_irda_dev en struct du selv opfinder?

Mamad (moveax1ret) (8) skrev:

det . skal væk

#include <stdio.h>

enum one_or_other { ONE, OTHER };

struct many_things
{
char *name;
enum one_or_other what;
void *something;
};

struct one_thing
{
int iv;
};

struct other_thing
{
double xv;
};

void dump(struct many_things *o)
{
struct one_thing *ont;
struct other_thing *ott;
printf("name=%s\n", o->name);
switch(o->what)
{
case ONE:
ont = o->something;
printf("iv=%d\n", ont->iv);
break;
case OTHER:
ott = o->something;
printf("xv=%f\n", ott->xv);
break;
default:
/* we should do something bad here */
;
}
}

int main()
{
struct many_things a, b;
struct one_thing a2;
struct other_thing b2;
a2.iv = 123;
a.name = "A";
a.what = ONE;
a.something = &a2;
dump(&a);
b2.xv = 123.456;
b.name = "B";
b.what = OTHER;
b.something = &b2;
dump(&b);
return 0;
}