p/usb-drivers
1
1
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

eizoctl: add an option to filter by serial number
Some checks failed
Alpine 3.21 Scripts failed
Details

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
eizoctl.c
View File

@ -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);