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make -C /lib/modules/4.19.0-10-amd64/build M=/home/user/cp210x modules
make[1]: Entering directory '/usr/src/linux-headers-4.19.0-10-amd64'
  CC [M]  /home/user/cp210x/cp210x.o
/home/user/cp210x/cp210x.c: In function ‘cp210x_get_tx_queue_byte_count’:
/home/user/cp210x/cp210x.c:703:26: error: dereferencing pointer to incomplete type ‘struct cp210x_comm_status’
     sts = kmalloc(sizeof(*sts), GFP_KERNEL);
                          ^~~~
/home/user/cp210x/cp210x.c: In function ‘cp210x_get_termios_port’:
/home/user/cp210x/cp210x.c:781:9: error: passing argument 5 of ‘cp210x_get_config’ from incompatible pointer type [-Werror=incompatible-pointer-types]
         &bits, 2);
         ^~~~~
/home/user/cp210x/cp210x.c:389:42: note: expected ‘unsigned int *’ but argument is of type ‘u16 *’ {aka ‘short unsigned int *’}
     u8 request, int value, unsigned int *data, unsigned int size) {
                            ~~~~~~~~~~~~~~^~~~
/home/user/cp210x/cp210x.c: In function ‘cp210x_set_termios’:
/home/user/cp210x/cp210x.c:941:37: error: passing argument 5 of ‘cp210x_get_config’ from incompatible pointer type [-Werror=incompatible-pointer-types]
             CP210X_GET_LINE_CTL, 0, &bits, 2);
                                     ^~~~~
/home/user/cp210x/cp210x.c:389:42: note: expected ‘unsigned int *’ but argument is of type ‘u16 *’ {aka ‘short unsigned int *’}
     u8 request, int value, unsigned int *data, unsigned int size) {
                            ~~~~~~~~~~~~~~^~~~
/home/user/cp210x/cp210x.c:982:37: error: passing argument 5 of ‘cp210x_get_config’ from incompatible pointer type [-Werror=incompatible-pointer-types]
             CP210X_GET_LINE_CTL, 0, &bits, 2);
                                     ^~~~~
/home/user/cp210x/cp210x.c:389:42: note: expected ‘unsigned int *’ but argument is of type ‘u16 *’ {aka ‘short unsigned int *’}
     u8 request, int value, unsigned int *data, unsigned int size) {
                            ~~~~~~~~~~~~~~^~~~
/home/user/cp210x/cp210x.c:1009:37: error: passing argument 5 of ‘cp210x_get_config’ from incompatible pointer type [-Werror=incompatible-pointer-types]
             CP210X_GET_LINE_CTL, 0, &bits, 2);
                                     ^~~~~
/home/user/cp210x/cp210x.c:389:42: note: expected ‘unsigned int *’ but argument is of type ‘u16 *’ {aka ‘short unsigned int *’}
     u8 request, int value, unsigned int *data, unsigned int size) {
                            ~~~~~~~~~~~~~~^~~~
/home/user/cp210x/cp210x.c: In function ‘cp210x_tiocmget’:
/home/user/cp210x/cp210x.c:1099:31: error: passing argument 5 of ‘cp210x_get_config’ from incompatible pointer type [-Werror=incompatible-pointer-types]
         CP210X_GET_MDMSTS, 0, &control, 1);
                               ^~~~~~~~
/home/user/cp210x/cp210x.c:389:42: note: expected ‘unsigned int *’ but argument is of type ‘u8 *’ {aka ‘unsigned char *’}
     u8 request, int value, unsigned int *data, unsigned int size) {
                            ~~~~~~~~~~~~~~^~~~
/home/user/cp210x/cp210x.c: In function ‘cp210x_process_read_urb’:
/home/user/cp210x/cp210x.c:1238:20: warning: unused variable ‘max_packet_size’ [-Wunused-variable]
     unsigned short max_packet_size = 128;
                    ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
make[4]: *** [/usr/src/linux-headers-4.19.0-10-common/scripts/Makefile.build:315: /home/user/cp210x/cp210x.o] Error 1
make[3]: *** [/usr/src/linux-headers-4.19.0-10-common/Makefile:1545: _module_/home/user/cp210x] Error 2
make[2]: *** [Makefile:146: sub-make] Error 2
make[1]: *** [Makefile:8: all] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.19.0-10-amd64'
make: *** [Makefile:5: all] Error 2