ham-ref/hamlib
1
0
Fork 0
mirror of https://github.com/Hamlib/Hamlib synced 2026-08-13 17:32:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Make sure to unexport the GPIO port during close

Browse source 
https://github.com/Hamlib/Hamlib/issues/1316
This commit is contained in:
Mike Black W9MDB 2023-06-17 11:57:07 -05:00
parent 97811d2aa7
commit efb567f667
1 changed files with 22 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

23
src/gpio.c
View file

@ -99,7 +99,28 @@ int gpio_open(hamlib_port_t *port, int output, int on_value)
int gpio_close(hamlib_port_t *port)
{
return close(port->fd);
int retval;
char pathname[HAMLIB_FILPATHLEN * 2];
FILE *fexp;
retval = close(port->fd);
SNPRINTF(pathname, HAMLIB_FILPATHLEN, "/sys/class/gpio/unexport");
fexp = fopen(pathname, "w");
if (!fexp)
{
rig_debug(RIG_DEBUG_ERR,
"Export GPIO%s (using %s): %s\n",
port->pathname,
pathname,
strerror(errno));
return -RIG_EIO;
}
fprintf(fexp, "%s\n", port->pathname);
fclose(fexp);
return retval;
}