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cursor-off: use pwrite for port access

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This commit is contained in:
K. Lange 2024-02-08 16:49:15 +09:00
parent 1e6316122a
commit fb2628d619
1 changed files with 4 additions and 8 deletions
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12
apps/cursor-off.c
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@ -19,13 +19,9 @@
int main(int argc, char * argv[]) {
int fd = open("/dev/port", O_RDWR);
if (fd < 0) return 1;
lseek(fd, 0x3D4, SEEK_SET);
write(fd, (unsigned char[]){14}, 1);
lseek(fd, 0x3D5, SEEK_SET);
write(fd, (unsigned char[]){0xFF}, 1);
lseek(fd, 0x3D4, SEEK_SET);
write(fd, (unsigned char[]){15}, 1);
lseek(fd, 0x3D5, SEEK_SET);
write(fd, (unsigned char[]){0xFF}, 1);
pwrite(fd, (unsigned char[]){14}, 1, 0x3D4);
pwrite(fd, (unsigned char[]){0xFF}, 1, 0x3D5);
pwrite(fd, (unsigned char[]){15}, 1, 0x3D4);
pwrite(fd, (unsigned char[]){0xFF}, 1, 0x3D5);
return 0;
}