写数据时内核打印信息如下
[ 15.721310] 0x481a0114 = 0x00000001 [ 15.724826] 0x481a0124 = 0x00000000 [ 15.728324] 0x481a0128 = 0x00000001 [ 15.731839] 0x481a012c = 0x201103fc [ 15.735337] 0x481a0130 = 0x00000002 [ 15.738834] 0x481a0134 = 0x00000501 [ 15.750035] write-8 ff [ 15.752428] read-8 00 [ 15.754705] write-8 ff [ 15.757086] read-8 00 [ 15.759363] write-8 ff [ 15.761747] read-8 00 [ 15.764024] write-8 ff [ 15.766405] read-8 00 [ 15.768682] write-8 ff [ 15.771063] read-8 00 [ 15.773378] write-8 ff [ 15.775760] read-8 00 [ 15.778037] write-8 40 [ 15.780418] read-8 00 [ 15.782709] write-8 00 [ 15.785091] read-8 00 [ 15.787367] write-8 00 [ 15.789748] read-8 00 [ 15.792077] write-8 00 [ 15.794460] read-8 00 [ 15.796830] write-8 00 [ 15.799214] read-8 00 [ 15.801491] write-8 95 [ 15.803894] read-8 00 [ 15.806173] write-8 ff [ 15.808553] read-8 00 [ 15.810830] write-8 ff [ 15.813223] read-8 00 [ 15.815501] write-8 ff [ 15.817882] read-8 00 [ 15.820159] write-8 ff [ 15.822551] read-8 00 [ 15.824828] write-8 ff [ 15.827209] read-8 00 [ 15.829486] write-8 ff [ 15.831877] read-8 00 [ 15.834155] write-8 ff [ 15.836536] read-8 00 [ 15.838812] write-8 ff [ 15.841193] read-8 00 [ 15.843483] write-8 ff [ 15.845864] read-8 00 [ 15.848141] write-8 ff [ 15.850522] read-8 00 [ 15.852809] write-8 ff [ 15.855191] read-8 00 [ 15.857468] write-8 ff [ 15.859848] read-8 00 [ 15.862136] write-8 ff [ 15.864517] read-8 00 [ 15.866794] write-8 ff [ 15.869174] read-8 00 [ 15.871450] write-8 ff [ 15.873842] read-8 00 [ 15.876119] write-8 ff [ 15.878500] read-8 00 [ 15.880776] write-8 ff [ 15.883168] read-8 00 [ 15.885446] write-8 ff [ 15.887827] read-8 00 [ 15.890103] write-8 f0 [ 15.892495] read-8 00 [ 15.894773] write-8 0d [ 15.897153] read-8 00
写入数据是没有问题，读出来的数据都是为0,SPI寄存器的值我也打印出来了