General discussion • Re: unable to find my i2c slave

Code:

gpiochip0 - 32 lines:        line   0:          "-"       unused   input  active-high         line   1: "2712_BOOT_CS_N" "spi10 CS0" output active-low [used]        line   2: "2712_BOOT_MISO" unused input active-high         line   3: "2712_BOOT_MOSI" unused input active-high         line   4: "2712_BOOT_SCLK" unused input active-high         line   5:          "-"       unused   input  active-high         line   6:          "-"       unused   input  active-high         line   7:          "-"       unused   input  active-high         line   8:          "-"       unused   input  active-high         line   9:          "-"       unused   input  active-high         line  10:          "-"       unused   input  active-high         line  11:          "-"       unused   input  active-high         line  12:          "-"       unused   input  active-high         line  13:          "-"       unused   input  active-high         line  14:   "PCIE_SDA"       unused   input  active-high         line  15:   "PCIE_SCL"       unused   input  active-high         line  16:          "-"       unused   input  active-high         line  17:          "-"       unused   input  active-high         line  18:          "-"       unused   input  active-high         line  19:          "-"       unused   input  active-high         line  20:   "PWR_GPIO" "pwr_button"   input   active-low [used]        line  21: "2712_G21_FS" unused input active-high         line  22:          "-"       unused   input  active-high         line  23:          "-"       unused   input  active-high         line  24:     "BT_RTS"       unused   input  active-high         line  25:     "BT_CTS"       unused   input  active-high         line  26:     "BT_TXD"       unused   input  active-high         line  27:     "BT_RXD"       unused   input  active-high         line  28:      "WL_ON"  "wl_on_reg"  output  active-high [used]        line  29:      "BT_ON"   "shutdown"  output  active-high [used]        line  30: "WIFI_SDIO_CLK" unused input active-high         line  31: "WIFI_SDIO_CMD" unused input active-high gpiochip1 - 4 lines:        line   0: "WIFI_SDIO_D0" unused input active-high         line   1: "WIFI_SDIO_D1" unused input active-high         line   2: "WIFI_SDIO_D2" unused input active-high         line   3: "WIFI_SDIO_D3" unused input active-high gpiochip2 - 17 lines:        line   0:    "RP1_SDA"       unused   input  active-high         line   1:    "RP1_SCL"       unused   input  active-high         line   2:    "RP1_RUN" "RP1 RUN pin" output active-high [used]        line   3: "SD_IOVDD_SEL" "vdd-sd-io" output active-high [used]        line   4:  "SD_PWR_ON" "sd_vcc_reg"  output  active-high [used]        line   5:  "SD_CDET_N"         "cd"   input   active-low [used]        line   6:   "SD_FLG_N"       unused   input  active-high         line   7:          "-"       unused   input  active-high         line   8:  "2712_WAKE"       unused   input  active-high         line   9: "2712_STAT_LED" "ACT" output active-low [used]        line  10:          "-"       unused   input  active-high         line  11:          "-"       unused   input  active-high         line  12:   "PMIC_INT"       unused   input  active-high         line  13: "UART_TX_FS"       unused   input  active-high         line  14: "UART_RX_FS"       unused   input  active-high         line  15:          "-"       unused   input  active-high         line  16:          "-"       unused   input  active-high gpiochip3 - 6 lines:        line   0:  "HDMI0_SCL"       unused   input  active-high         line   1:  "HDMI0_SDA"       unused   input  active-high         line   2:  "HDMI1_SCL"       unused   input  active-high         line   3:  "HDMI1_SDA"       unused   input  active-high         line   4:   "PMIC_SCL"       unused   input  active-high         line   5:   "PMIC_SDA"       unused   input  active-high gpiochip4 - 54 lines:        line   0:     "ID_SDA"       unused   input  active-high         line   1:     "ID_SCL"       unused   input  active-high         line   2:      "GPIO2"       unused   input  active-high         line   3:      "GPIO3"       unused   input  active-high         line   4:      "GPIO4"       unused   input  active-high         line   5:      "GPIO5"       unused   input  active-high         line   6:      "GPIO6"       unused   input  active-high         line   7:      "GPIO7"   "spi0 CS1"  output   active-low [used]        line   8:      "GPIO8"   "spi0 CS0"  output   active-low [used]        line   9:      "GPIO9"       unused   input  active-high         line  10:     "GPIO10"       unused   input  active-high         line  11:     "GPIO11"       unused   input  active-high         line  12:     "GPIO12"       unused   input  active-high         line  13:     "GPIO13"       unused   input  active-high         line  14:     "GPIO14"       unused   input  active-high         line  15:     "GPIO15"       unused   input  active-high         line  16:     "GPIO16"       unused   input  active-high         line  17:     "GPIO17"       unused   input  active-high         line  18:     "GPIO18"       unused   input  active-high         line  19:     "GPIO19"       unused   input  active-high         line  20:     "GPIO20"       unused   input  active-high         line  21:     "GPIO21"       unused   input  active-high         line  22:     "GPIO22"       unused   input  active-high         line  23:     "GPIO23"       unused   input  active-high         line  24:     "GPIO24"       unused   input  active-high         line  25:     "GPIO25"       unused   input  active-high         line  26:     "GPIO26"       unused   input  active-high         line  27:     "GPIO27"       unused   input  active-high         line  28: "PCIE_RP1_WAKE" unused input active-high         line  29:   "FAN_TACH"       unused   input  active-high         line  30:   "HOST_SDA"       unused   input  active-high         line  31:   "HOST_SCL"       unused   input  active-high         line  32:  "ETH_RST_N"  "phy-reset"  output   active-low [used]        line  33:          "-"       unused   input  active-high         line  34: "CD0_IO0_MICCLK" "cam0_reg" output active-high [used]        line  35: "CD0_IO0_MICDAT0" unused input active-high         line  36: "RP1_PCIE_CLKREQ_N" unused input active-high         line  37:          "-"       unused   input  active-high         line  38:    "CD0_SDA"       unused   input  active-high         line  39:    "CD0_SCL"       unused   input  active-high         line  40:    "CD1_SDA"       unused   input  active-high         line  41:    "CD1_SCL"       unused   input  active-high         line  42: "USB_VBUS_EN" unused output active-high         line  43:   "USB_OC_N"       unused   input  active-high         line  44: "RP1_STAT_LED" "PWR" output active-low [used]        line  45:    "FAN_PWM"       unused  output  active-high         line  46: "CD1_IO0_MICCLK" "cam1_reg" output active-high [used]        line  47:  "2712_WAKE"       unused   input  active-high         line  48: "CD1_IO1_MICDAT1" unused input active-high         line  49: "EN_MAX_USB_CUR" unused output active-high         line  50:          "-"       unused   input  active-high         line  51:          "-"       unused   input  active-high         line  52:          "-"       unused   input  active-high         line  53:          "-"       unused   input  active-high