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eizoctl: add an option to filter by serial number
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It turns out that this is actually critical when switching inputs
in certain wild setups.
This commit is contained in:
Přemysl Eric Janouch 2025-07-31 21:11:45 +02:00
parent 135f336a7c
commit d8b01cdaee
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 15 additions and 4 deletions
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19
eizoctl.c
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@ -1039,6 +1039,8 @@ eizo_watch(struct eizo_monitor *m, print_fn output, print_fn error)
static const char *usage = "Usage: %s OPTION...\n\n"
" -l, --list\n"
" List all connected EIZO monitors, with their serial number.\n"
" -s, --serial SERIAL\n"
" Only act on the monitor matching the specified serial number.\n"
" -b, --brightness [+-]BRIGHTNESS\n"
" Change monitor brightness; values go from 0 to 1 and may be relative.\n"
" -i, --input NAME\n"
@ -1060,6 +1062,7 @@ run(int argc, char *argv[], print_fn output, print_fn error)
const char *name = argv[0];
static struct option opts[] = {
{"list", no_argument, NULL, 'l'},
{"serial", required_argument, NULL, 's'},
{"brightness", required_argument, NULL, 'b'},
{"input", required_argument, NULL, 'i'},
{"restart", no_argument, NULL, 'r'},
@ -1073,13 +1076,16 @@ run(int argc, char *argv[], print_fn output, print_fn error)
int quiet = 0;
double brightness = NAN;
bool list = false, relative = false, restart = false, events = false;
const char *port = NULL;
const char *serial = NULL, *port = NULL;
int c = 0;
while ((c = getopt_long(argc, argv, "lb:i:reqhV", opts, NULL)) != -1)
while ((c = getopt_long(argc, argv, "ls:b:i:reqhV", opts, NULL)) != -1)
switch (c) {
case 'l':
list = true;
break;
case 's':
serial = optarg;
break;
case 'b':
relative = *optarg == '+' || *optarg == '-';
if (sscanf(optarg, "%lf", &brightness) && isfinite(brightness))
@ -1129,8 +1135,6 @@ run(int argc, char *argv[], print_fn output, print_fn error)
if (quiet > 1)
error = print_dummy;
// It should be possible to choose a particular monitor,
// but it is generally more useful to operate on all of them.
struct hid_device_info *devs = hid_enumerate(USB_VID_EIZO, 0), *p = devs;
for (; p; p = p->next) {
struct eizo_monitor m = {};
@ -1142,6 +1146,12 @@ run(int argc, char *argv[], print_fn output, print_fn error)
if (list)
output("%s %s\n", m.product, m.serial);
// Generously assuming that different products/models
// don't share serial numbers,
// which would otherwise deserve another filtering option.
if (serial && strcmp(serial, m.serial))
goto next;
if (isfinite(brightness)) {
double prev = 0.;
if (!eizo_get_brightness(&m, &prev)) {
@ -1186,6 +1196,7 @@ run(int argc, char *argv[], print_fn output, print_fn error)
error("%s\n", m.error);
}
next:
eizo_monitor_close(&m);
}
hid_free_enumeration(devs);