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Linux 7.0 合并多通道 SPI 支持

  • 2026-02-27 22:28:39
Linux 7.0 合并多通道 SPI 支持

Linux 7.0 合并多通道 SPI 支持 🔌

随着 Linux 7.0 内核的串行外设接口 SPI 子系统更新，带来了对多通道 SPI 的支持，允许 SPI 控制器和外设通过多个独立的串行数据输入/输出（SDI/SDO）线路进行数据传输。
🔹 多通道 SPI 支持适用于 SPI 控制器和外设，这些控制器和外设具有多个数据通道，这些数据通道是独立的 SDI/SDO 线组，且每个通道都配有自己的序列化器/反序列化器。
🔹 与现有的双通道/四通道 SPI 支持不同，多通道 SPI 针对的是那些（通常是ADC/DAC）支持通过多个数据通道传输多个独立数据流的设备，它们不是将一个数据流以 N 倍速度发送，而是同时传输 N 个不同的数据流。
🔹 与多个设备组合在一起的情况非常相似，但在这种情况下，从软件角度看它是一个单一设备。
🔹 在现有驱动程序方面已经做了相当多的工作，包括清理和功能改进，同时也有不少新的驱动程序。
💭 通过引入多通道 SPI 支持，Linux 7.0 能够更高效地处理高性能感知和转换设备产生的多路并行数据流。
#SPI #Linux内核 #Linux

dump linux

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      138. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
      139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
      140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
      1. CONNECT:[ UseTime:0.000909s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
      2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001635s ]
      3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000980s ]
      4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000669s ]
      5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001561s ]
      6. SELECT * FROM `set` [ RunTime:0.000593s ]
      7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001878s ]
      8. SELECT * FROM `article` WHERE `id` = 476029 LIMIT 1 [ RunTime:0.001064s ]
      9. UPDATE `article` SET `lasttime` = 1772298859 WHERE `id` = 476029 [ RunTime:0.001789s ]
      10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000693s ]
      11. SELECT * FROM `article` WHERE `id` < 476029 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001270s ]
      12. SELECT * FROM `article` WHERE `id` > 476029 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001226s ]
      13. SELECT * FROM `article` WHERE `id` < 476029 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002675s ]
      14. SELECT * FROM `article` WHERE `id` < 476029 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002960s ]
      15. SELECT * FROM `article` WHERE `id` < 476029 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003316s ]
      0.203718s