LXR linux/sound/firewire/lib.h

   1#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
   2#define SOUND_FIREWIRE_LIB_H_INCLUDED
   3
   4#include <linux/firewire-constants.h>
   5#include <linux/types.h>
   6
   7struct fw_unit;
   8
   9#define FW_GENERATION_MASK      0x00ff
  10#define FW_FIXED_GENERATION     0x0100
  11#define FW_QUIET                0x0200
  12
  13int snd_fw_transaction(struct fw_unit *unit, int tcode,
  14                       u64 offset, void *buffer, size_t length,
  15                       unsigned int flags);
  16
  17/* returns true if retrying the transaction would not make sense */
  18static inline bool rcode_is_permanent_error(int rcode)
  19{
  20        return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
  21}
  22
  23#endif
  24