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vmctl: input-control library over QMP and Linux uinput

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QMP client and driver, Linux uinput driver, keymap, open/power helpers, public header, and CMake build.
This commit is contained in:
Gregory Lirent
2026-06-17 12:55:36 +03:00
commit 9b75494380
12 changed files with 861 additions and 0 deletions
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src/vmctl/power.c
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/* power.c — QMP power/lifecycle actuation. This plane is orthogonal to the
* input driver and always rides the shared QMP channel; every entry returns -1
* when there is no connection. */
#include "driver.h"
/* QMP responses are small; a stack buffer suffices. */
static int qmp_simple(vmctl_t* v, const char* cmd) {
if (!v->qmp) return -1;
char resp[1024];
return qmp_exec(v->qmp, cmd, resp, sizeof resp);
}
int vmctl_powerdown(vmctl_t* v) { return qmp_simple(v, "{\"execute\":\"system_powerdown\"}"); }
int vmctl_reset (vmctl_t* v) { return qmp_simple(v, "{\"execute\":\"system_reset\"}"); }
int vmctl_wakeup (vmctl_t* v) { return qmp_simple(v, "{\"execute\":\"system_wakeup\"}"); }
int vmctl_pause (vmctl_t* v) { return qmp_simple(v, "{\"execute\":\"stop\"}"); }
int vmctl_resume (vmctl_t* v) { return qmp_simple(v, "{\"execute\":\"cont\"}"); }