doesnt compile on buster

[tommybuck]

Hi,

Trying to compile on raspbian buster (Linux 4.19.58-v7+ armv7l). I have installed kernel-headers package ( sudo apt-get install raspberrypi-kernel-headers)

I'm getting the following error when I run make:

make -C /lib/modules/4.19.58-v7+/build M=/home/pi/linux-am2320-driver modules
make[1]: Entering directory '/usr/src/linux-headers-4.19.58-v7+'
CC [M] /home/pi/linux-am2320-driver/am2320.o
/home/pi/linux-am2320-driver/am2320.c:127:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types]
&sensor_dev_attr_temp1_max.dev_attr.attr,
^
/home/pi/linux-am2320-driver/am2320.c:127:5: note: (near initialization for ‘am2320_attrs[0]’)
/home/pi/linux-am2320-driver/am2320.c:128:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types]
&sensor_dev_attr_temp1_min.dev_attr.attr,
^
/home/pi/linux-am2320-driver/am2320.c:128:5: note: (near initialization for ‘am2320_attrs[1]’)
/home/pi/linux-am2320-driver/am2320.c:129:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types]
&sensor_dev_attr_temp1_input.dev_attr.attr,
^
/home/pi/linux-am2320-driver/am2320.c:129:5: note: (near initialization for ‘am2320_attrs[2]’)
/home/pi/linux-am2320-driver/am2320.c:130:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types]
&sensor_dev_attr_humidity1_input.dev_attr.attr,
^
/home/pi/linux-am2320-driver/am2320.c:130:5: note: (near initialization for ‘am2320_attrs[3]’)
/home/pi/linux-am2320-driver/am2320.c:136:14: error: initialization of ‘struct attribute **’ from incompatible pointer type ‘struct device_attribute **’ [-Werror=incompatible-pointer-types]
.attrs = am2320_attrs,
^~~~~~~~~~~~
/home/pi/linux-am2320-driver/am2320.c:136:14: note: (near initialization for ‘am2320_group.attrs’)
/home/pi/linux-am2320-driver/am2320.c: In function ‘am2320_i2c_probe’:
/home/pi/linux-am2320-driver/am2320.c:295:1: warning: label ‘err_free_res’ defined but not used [-Wunused-label]
err_free_res:
^~~~~~~~~~~~
/home/pi/linux-am2320-driver/am2320.c:242:9: warning: unused variable ‘error’ [-Wunused-variable]
int error;
^~~~~
/home/pi/linux-am2320-driver/am2320.c:241:9: warning: unused variable ‘ret’ [-Wunused-variable]
int ret;
^~~
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:310: /home/pi/linux-am2320-driver/am2320.o] Error 1
make[1]: *** [Makefile:1517: module/home/pi/linux-am2320-driver] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.19.58-v7+'
make: *** [Makefile:4: all] Error 2

[maphilli14]

I think I have the same problem on RasperryPi4b:

pi@astrocart:~/linux-am2320-driver $ make make -C /lib/modules/5.10.17-v7l+/build M=/home/pi/linux-am2320-driver modules make[1]: Entering directory '/home/pi/linux-623ca2ba45d86eb1b0323637330295c3f8d93c76' CC [M] /home/pi/linux-am2320-driver/am2320.o /home/pi/linux-am2320-driver/am2320.c:127:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types] &sensor_dev_attr_temp1_max.dev_attr.attr, ^ /home/pi/linux-am2320-driver/am2320.c:127:5: note: (near initialization for ‘am2320_attrs[0]’) /home/pi/linux-am2320-driver/am2320.c:128:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types] &sensor_dev_attr_temp1_min.dev_attr.attr, ^ /home/pi/linux-am2320-driver/am2320.c:128:5: note: (near initialization for ‘am2320_attrs[1]’) /home/pi/linux-am2320-driver/am2320.c:129:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types] &sensor_dev_attr_temp1_input.dev_attr.attr, ^ /home/pi/linux-am2320-driver/am2320.c:129:5: note: (near initialization for ‘am2320_attrs[2]’) /home/pi/linux-am2320-driver/am2320.c:130:5: error: initialization of ‘struct device_attribute *’ from incompatible pointer type ‘struct attribute *’ [-Werror=incompatible-pointer-types] &sensor_dev_attr_humidity1_input.dev_attr.attr, ^ /home/pi/linux-am2320-driver/am2320.c:130:5: note: (near initialization for ‘am2320_attrs[3]’) /home/pi/linux-am2320-driver/am2320.c:136:14: error: initialization of ‘struct attribute **’ from incompatible pointer type ‘struct device_attribute **’ [-Werror=incompatible-pointer-types] .attrs = am2320_attrs, ^~~~~~~~~~~~ /home/pi/linux-am2320-driver/am2320.c:136:14: note: (near initialization for ‘am2320_group.attrs’) /home/pi/linux-am2320-driver/am2320.c: In function ‘am2320_i2c_probe’: /home/pi/linux-am2320-driver/am2320.c:295:1: warning: label ‘err_free_res’ defined but not used [-Wunused-label] err_free_res: ^~~~~~~~~~~~ /home/pi/linux-am2320-driver/am2320.c:242:9: warning: unused variable ‘error’ [-Wunused-variable] int error; ^~~~~ /home/pi/linux-am2320-driver/am2320.c:241:9: warning: unused variable ‘ret’ [-Wunused-variable] int ret; ^~~ cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:279: /home/pi/linux-am2320-driver/am2320.o] Error 1 make[1]: *** [Makefile:1804: /home/pi/linux-am2320-driver] Error 2 make[1]: Leaving directory '/home/pi/linux-623ca2ba45d86eb1b0323637330295c3f8d93c76' make: *** [Makefile:4: all] Error 2