kernel/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
   7 struct fw_unit;
   8
   9 #define FW_GENERATION_MASK      0x00ff
  10 #define FW_FIXED_GENERATION     0x0100
  11 #define FW_QUIET                0x0200
  12
  13 int 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 */
  18 static inline bool rcode_is_permanent_error(int rcode)
  19 {
  20         return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
  21 }
  22
  23 #endif