Hello fellos
Model:
Linux beaglebone 4.14.108-ti-r113 #1 SMP PREEMPT Wed Jul 31 00:01:10 UTC 2019 armv7l GNU/Linux
I’m trying to get the IIO driver to work correctly for a MCP4725 chip.
module loads with
modprobe mcp4725
but when i attach it to the i2c device
echo “mcp4725 0x60” >/sys/bus/i2c/devices/i2c-2/new_device
it doesn’t load the IIO driver, it should show up at UU. am i missing something?
root@beaglebone:/sys/bus/iio/devices# i2cdetect -r 2
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-2 using read byte commands.
I will probe address range 0x03-0x77.
Continue? [Y/n] Y
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – -- – -- – -- – -- – -- – -- –
10: – -- – -- – -- – -- – -- – -- – -- – --
20: – -- – -- – -- – -- – -- – -- – -- – --
30: – -- – -- – -- – -- – -- – -- – -- – --
40: – -- – -- – -- – -- – -- – -- – -- – --
50: – -- – -- UU UU UU UU – -- – -- – -- – --
60: 60 – -- – -- – -- – -- – -- – -- – -- –
70: – -- – -- – -- – --
root@beaglebone:/sys/bus/iio/devices# ls -l
total 0
root@beaglebone:/sys/bus/iio/devices# lsmod
Module Size Used by
evdev 24576 1
8021q 32768 0
garp 16384 1 8021q
mrp 20480 1 8021q
stp 16384 1 garp
llc 16384 2 garp,stp
usb_f_mass_storage 53248 2
usb_f_acm 16384 2
u_serial 20480 3 usb_f_acm
usb_f_ecm 20480 2
usb_f_rndis 32768 4
u_ether 20480 2 usb_f_ecm,usb_f_rndis
libcomposite 65536 18 usb_f_ecm,usb_f_acm,usb_f_mass_storage,usb_f_rndis
iptable_nat 16384 0
nf_conntrack_ipv4 20480 1
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
nf_nat_ipv4 16384 1 iptable_nat
nf_nat 32768 1 nf_nat_ipv4
nf_conntrack 143360 3 nf_conntrack_ipv4,nf_nat_ipv4,nf_nat
iptable_mangle 16384 0
iptable_filter 16384 0
uio_pdrv_genirq 16384 0
uio 20480 1 uio_pdrv_genirq
spidev 20480 0
pruss_soc_bus 16384 0
pru_rproc 28672 0
pruss 16384 1 pru_rproc
pruss_intc 16384 1 pru_rproc
mcp4725 16384 0
ip_tables 24576 3 iptable_mangle,iptable_filter,iptable_nat
x_tables 36864 3 iptable_mangle,ip_tables,iptable_filter