website-struct

Struct: spi_master

Status

Regular

• In 4.4: ✅

  struct spi_master {
      struct device dev;
      struct list_head list;
      s16 bus_num;
      u16 num_chipselect;
      u16 dma_alignment;
      u16 mode_bits;
      u32 bits_per_word_mask;
      u32 min_speed_hz;
      u32 max_speed_hz;
      u16 flags;
      spinlock_t bus_lock_spinlock;
      struct mutex bus_lock_mutex;
      bool bus_lock_flag;
      int (*setup)(struct spi_device *);
      int (*transfer)(struct spi_device *, struct spi_message *);
      void (*cleanup)(struct spi_device *);
      bool (*can_dma)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      bool queued;
      struct kthread_worker kworker;
      struct task_struct *kworker_task;
      struct kthread_work pump_messages;
      spinlock_t queue_lock;
      struct list_head queue;
      struct spi_message *cur_msg;
      bool idling;
      bool busy;
      bool running;
      bool rt;
      bool auto_runtime_pm;
      bool cur_msg_prepared;
      bool cur_msg_mapped;
      struct completion xfer_completion;
      size_t max_dma_len;
      int (*prepare_transfer_hardware)(struct spi_master *);
      int (*transfer_one_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_transfer_hardware)(struct spi_master *);
      int (*prepare_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_message)(struct spi_master *, struct spi_message *);
      void (*set_cs)(struct spi_device *, bool);
      int (*transfer_one)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      void (*handle_err)(struct spi_master *, struct spi_message *);
      int *cs_gpios;
      struct spi_statistics statistics;
      struct dma_chan *dma_tx;
      struct dma_chan *dma_rx;
      void *dummy_rx;
      void *dummy_tx;
  };
  

• In 4.8: ✅

  struct spi_master {
      struct device dev;
      struct list_head list;
      s16 bus_num;
      u16 num_chipselect;
      u16 dma_alignment;
      u16 mode_bits;
      u32 bits_per_word_mask;
      u32 min_speed_hz;
      u32 max_speed_hz;
      u16 flags;
      size_t (*max_transfer_size)(struct spi_device *);
      struct mutex io_mutex;
      spinlock_t bus_lock_spinlock;
      struct mutex bus_lock_mutex;
      bool bus_lock_flag;
      int (*setup)(struct spi_device *);
      int (*transfer)(struct spi_device *, struct spi_message *);
      void (*cleanup)(struct spi_device *);
      bool (*can_dma)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      bool queued;
      struct kthread_worker kworker;
      struct task_struct *kworker_task;
      struct kthread_work pump_messages;
      spinlock_t queue_lock;
      struct list_head queue;
      struct spi_message *cur_msg;
      bool idling;
      bool busy;
      bool running;
      bool rt;
      bool auto_runtime_pm;
      bool cur_msg_prepared;
      bool cur_msg_mapped;
      struct completion xfer_completion;
      size_t max_dma_len;
      int (*prepare_transfer_hardware)(struct spi_master *);
      int (*transfer_one_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_transfer_hardware)(struct spi_master *);
      int (*prepare_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_message)(struct spi_master *, struct spi_message *);
      int (*spi_flash_read)(struct spi_device *, struct spi_flash_read_message *);
      bool (*flash_read_supported)(struct spi_device *);
      void (*set_cs)(struct spi_device *, bool);
      int (*transfer_one)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      void (*handle_err)(struct spi_master *, struct spi_message *);
      int *cs_gpios;
      struct spi_statistics statistics;
      struct dma_chan *dma_tx;
      struct dma_chan *dma_rx;
      void *dummy_rx;
      void *dummy_tx;
      int (*fw_translate_cs)(struct spi_master *, unsigned int);
  };
  

• In 4.10: ✅

  struct spi_master {
      struct device dev;
      struct list_head list;
      s16 bus_num;
      u16 num_chipselect;
      u16 dma_alignment;
      u16 mode_bits;
      u32 bits_per_word_mask;
      u32 min_speed_hz;
      u32 max_speed_hz;
      u16 flags;
      size_t (*max_transfer_size)(struct spi_device *);
      size_t (*max_message_size)(struct spi_device *);
      struct mutex io_mutex;
      spinlock_t bus_lock_spinlock;
      struct mutex bus_lock_mutex;
      bool bus_lock_flag;
      int (*setup)(struct spi_device *);
      int (*transfer)(struct spi_device *, struct spi_message *);
      void (*cleanup)(struct spi_device *);
      bool (*can_dma)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      bool queued;
      struct kthread_worker kworker;
      struct task_struct *kworker_task;
      struct kthread_work pump_messages;
      spinlock_t queue_lock;
      struct list_head queue;
      struct spi_message *cur_msg;
      bool idling;
      bool busy;
      bool running;
      bool rt;
      bool auto_runtime_pm;
      bool cur_msg_prepared;
      bool cur_msg_mapped;
      struct completion xfer_completion;
      size_t max_dma_len;
      int (*prepare_transfer_hardware)(struct spi_master *);
      int (*transfer_one_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_transfer_hardware)(struct spi_master *);
      int (*prepare_message)(struct spi_master *, struct spi_message *);
      int (*unprepare_message)(struct spi_master *, struct spi_message *);
      int (*spi_flash_read)(struct spi_device *, struct spi_flash_read_message *);
      bool (*flash_read_supported)(struct spi_device *);
      void (*set_cs)(struct spi_device *, bool);
      int (*transfer_one)(struct spi_master *, struct spi_device *, struct spi_transfer *);
      void (*handle_err)(struct spi_master *, struct spi_message *);
      int *cs_gpios;
      struct spi_statistics statistics;
      struct dma_chan *dma_tx;
      struct dma_chan *dma_rx;
      void *dummy_rx;
      void *dummy_tx;
      int (*fw_translate_cs)(struct spi_master *, unsigned int);
  };
  

• In 4.13: Absent ⚠️
• In 4.15: Absent ⚠️
• In 4.18: Absent ⚠️
• In 5.0: Absent ⚠️
• In 5.3: Absent ⚠️
• In 5.4: Absent ⚠️
• In 5.8: Absent ⚠️
• In 5.11: Absent ⚠️
• In 5.13: Absent ⚠️
• In 5.15: Absent ⚠️
• In 5.19: Absent ⚠️
• In 6.2: Absent ⚠️
• In 6.5: Absent ⚠️
• In 6.8: Absent ⚠️

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: Absent ⚠️
• In azure: Absent ⚠️
• In gcp: Absent ⚠️
• In lowlatency: Absent ⚠️

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. size_t (*max_transfer_size)(struct spi_device *)
  • Field added. struct mutex io_mutex
  • Field added. int (*spi_flash_read)(struct spi_device *, struct spi_flash_read_message *)
  • Field added. bool (*flash_read_supported)(struct spi_device *)
  • Field added. int (*fw_translate_cs)(struct spi_master *, unsigned int)
• Changed between 4.8 and 4.10 ⚠️

  • Field added. size_t (*max_message_size)(struct spi_device *)