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 24