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trying to get the driver test

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This commit is contained in:
carl 2023-06-07 09:25:31 -03:00
parent a7b664e397
commit 52d8339f4b
1 changed files with 37 additions and 10 deletions
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47
modules/fjpalmvein/C/fjpalmvein-main/drivertest.c
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@ -1,36 +1,63 @@
#include <stdio.h> #include <stdio.h>
#include <string.h>
#include <fcntl.h> #include <fcntl.h>
#include <unistd.h> #include <unistd.h>
#include <sys/ioctl.h> #include <sys/ioctl.h>
#include "fjveincam.h" #include "fjveincam.h"
#define DEVICE_PATH "/dev/usb/fjveincam0"
int main(int argc, char ** argv) {
int main() {
struct fjveincam_info info; struct fjveincam_info info;
int status = 0; int status = 0;
int fd = 0;
char fname[] = "/dev/usb/fjveincam\0\0";
char * p1 = fname;
char * p2 = 0;
memset(&info,1,sizeof(struct fjveincam_info));
p2 = argv[1];
*(p1+strlen(p1))=*p2;
printf("#1 %s\n", fname);
int fd = open(DEVICE_PATH, O_RDWR); fd = open(fname, O_RDWR);
if (fd < 0) { if (fd < 0) {
printf("Failed to open USB device %s", DEVICE_PATH); perror("open");
printf("Failed to open USB device %s (%d)",fname, fd);
return -1; return -1;
} }
printf("Open USB device OK with magic number %d\n", USB_FJVEINCAM_IOCTL_CHECK);
printf("#2 Open returned fd: %d\n", fd);
close(fd);
return (0);
printf("Trying ioctl magic number %lu\n", (unsigned long)USB_FJVEINCAMV30_IOCTL_CHECK);
int arg = 0;
// Call the function in the kernel module // Call the function in the kernel module
status = ioctl(fd, 33, &info); status = ioctl(fd, USB_FJVEINCAMV30_IOCTL_CHECK, &info);
printf("3 %d \n",status);
if (status < 0) { if (status < 0) {
perror("ioctl"); perror("ioctl");
printf("Failed to call function in kernel module with IOCTL %d code %d\n",USB_FJVEINCAM_IOCTL_CHECK,status); printf("Failed to call function in kernel module with IOCTL code %lu\n",(unsigned long)USB_FJVEINCAMV30_IOCTL_CHECK,status);
close(fd); close(fd);
return -1; return -1;
} }
printf("4 \n");
printf("%d %d %d %d %d %d %d '%s'\n", info.magic, info.minor, info.o_timeout,
info.r_error, info.r_lasterr, info.w_error, info.w_lasterr, info.version);
close(fd); close(fd);
return 0; printf("5 \n");
return 0;
} }