LibreELEC:~ # find /sys/ -name '*spi*'
/sys/kernel/debug/clk/bus-spinlock
/sys/kernel/debug/clk/spi0
/sys/kernel/debug/clk/spi1
/sys/kernel/debug/clk/bus-spi0
/sys/kernel/debug/clk/bus-spi1
/sys/class/spi_master
/sys/class/spi_master/spi1
/sys/devices/platform/soc/5011000.spi
/sys/devices/platform/soc/5011000.spi/spi_master
/sys/devices/platform/soc/5011000.spi/spi_master/spi1
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/statistics/spi_async
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/statistics/spi_sync_immediate
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/statistics/spi_sync
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/spi1.0
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/spi1.0/statistics/spi_async
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/spi1.0/statistics/spi_sync_immediate
/sys/devices/platform/soc/5011000.spi/spi_master/spi1/spi1.0/statistics/spi_sync
/sys/bus/platform/devices/5011000.spi
/sys/bus/platform/drivers/sun6i-spi
/sys/bus/platform/drivers/sun6i-spi/5011000.spi
/sys/bus/platform/drivers/rockchip-spi
/sys/bus/spi
/sys/bus/spi/devices/spi1.0
/sys/bus/spi/drivers/mmc_spi
/sys/bus/spi/drivers/spi-nor
/sys/firmware/devicetree/base/soc/pinctrl@300b000/spi0-cs-pin
/sys/firmware/devicetree/base/soc/pinctrl@300b000/spi1-cs-pin
/sys/firmware/devicetree/base/soc/pinctrl@300b000/spi1-pins
/sys/firmware/devicetree/base/soc/pinctrl@300b000/spi0-pins
/sys/firmware/devicetree/base/soc/spi@5011000
/sys/firmware/devicetree/base/soc/spi@5011000/spidev@0
/sys/firmware/devicetree/base/soc/spi@5011000/spidev@0/spi-max-frequency
/sys/firmware/devicetree/base/soc/spi@5010000
/sys/firmware/devicetree/base/aliases/spi1
/sys/firmware/devicetree/base/__symbols__/spi1_cs_pin
/sys/firmware/devicetree/base/__symbols__/spi0
/sys/firmware/devicetree/base/__symbols__/spi1
/sys/firmware/devicetree/base/__symbols__/spi1_pins
/sys/firmware/devicetree/base/__symbols__/spi0_pins
/sys/firmware/devicetree/base/__symbols__/spi0_cs_pin
LibreELEC:~ # 
