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STRUCT SPI_STATISTIC(9) Serial Peripheral Interface (S STRUCT SPI_STATISTIC(9)

NAME

struct_spi_statistics - statistics for spi transfers

SYNOPSIS

struct spi_statistics {
  spinlock_t lock;
  unsigned long messages;
  unsigned long transfers;
  unsigned long errors;
  unsigned long timedout;
  unsigned long spi_sync;
  unsigned long spi_sync_immediate;
  unsigned long spi_async;
  unsigned long long bytes;
  unsigned long long bytes_rx;
  unsigned long long bytes_tx;
#define SPI_STATISTICS_HISTO_SIZE 17
  unsigned long transfer_bytes_histo[SPI_STATISTICS_HISTO_SIZE];
  unsigned long transfers_split_maxsize;
};

MEMBERS

lock
lock protecting this structure
messages
number of spi-messages handled
transfers
number of spi_transfers handled
errors
number of errors during spi_transfer
timedout
number of timeouts during spi_transfer
spi_sync
number of times spi_sync is used
spi_sync_immediate
number of times spi_sync is executed immediately in calling context without queuing and scheduling
spi_async
number of times spi_async is used
bytes
number of bytes transferred to/from device
bytes_rx
number of bytes received from device
bytes_tx
number of bytes sent to device
transfer_bytes_histo[SPI_STATISTICS_HISTO_SIZE]
transfer bytes histogramm
transfers_split_maxsize
number of transfers that have been split because of maxsize limit

COPYRIGHT

January 2017 Kernel Hackers Manual 4.8.