cregit-Linux how code gets into the kernel

Release 4.12 include/linux/hw_random.h

Directory: include/linux
        Hardware Random Number Generator

        Please read Documentation/hw_random.txt for details on use.

        This software may be used and distributed according to the terms
        of the GNU General Public License, incorporated herein by reference.




#include <linux/completion.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/kref.h>

 * struct hwrng - Hardware Random Number Generator driver
 * @name:               Unique RNG name.
 * @init:               Initialization callback (can be NULL).
 * @cleanup:            Cleanup callback (can be NULL).
 * @data_present:       Callback to determine if data is available
 *                      on the RNG. If NULL, it is assumed that
 *                      there is always data available.  *OBSOLETE*
 * @data_read:          Read data from the RNG device.
 *                      Returns the number of lower random bytes in "data".
 *                      Must not be NULL.    *OBSOLETE*
 * @read:               New API. drivers can fill up to max bytes of data
 *                      into the buffer. The buffer is aligned for any type
 *                      and max is a multiple of 4 and >= 32 bytes.
 * @priv:               Private data, for use by the RNG driver.
 * @quality:            Estimation of true entropy in RNG's bitstream
 *                      (per mill).

struct hwrng {
const char *name;
int (*init)(struct hwrng *rng);
void (*cleanup)(struct hwrng *rng);
int (*data_present)(struct hwrng *rng, int wait);
int (*data_read)(struct hwrng *rng, u32 *data);
int (*read)(struct hwrng *rng, void *data, size_t max, bool wait);
unsigned long priv;
unsigned short quality;

	/* internal. */
struct list_head list;
struct kref ref;
struct completion cleanup_done;

struct device;

/** Register a new Hardware Random Number Generator driver. */
extern int hwrng_register(struct hwrng *rng);
extern int devm_hwrng_register(struct device *dev, struct hwrng *rng);
/** Unregister a Hardware Random Number Generator driver. */
extern void hwrng_unregister(struct hwrng *rng);
extern void devm_hwrng_unregister(struct device *dve, struct hwrng *rng);
/** Feed random bits into the pool. */
extern void add_hwgenerator_randomness(const char *buffer, size_t count, size_t entropy);

#endif /* LINUX_HWRANDOM_H_ */

Overall Contributors

Michael Büsch10853.20%19.09%
Dmitry Torokhov3316.26%19.09%
Ian Molton2210.84%19.09%
Torsten Duwe2110.34%218.18%
Rusty Russell94.43%218.18%
Herbert Xu52.46%19.09%
Patrick McHardy31.48%19.09%
PrasannaKumar Muralidharan10.49%19.09%
Rafael J. Wysocki10.49%19.09%
Directory: include/linux
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