From: Michael Gernoth <michael@gernoth.net>
Date: Thu, 5 Nov 2015 20:50:29 +0000 (+0100)
Subject: hmland: decrease poll-timeout to 250ms
X-Git-Tag: v0.102~3
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/hmcfgusb/commitdiff_plain/6a744bb95f239181316207f4520b5955483df914

hmland: decrease poll-timeout to 250ms

Send a NULL-frame to the hmcfgusb at least every 250ms, this seems to
improve behaviour on the Raspberry Pi and should not really introduce
overhead.

Thanks to wuffzack@homematic-forum for the info.
---

diff --git a/hmland.c b/hmland.c
index 8e5d6da..5eb73c0 100644
--- a/hmland.c
+++ b/hmland.c
@@ -47,6 +47,7 @@
 
 #define PID_FILE "/var/run/hmland.pid"
 
+#define POLL_TIMEOUT_MS		250	/* Wake up device/bus at least once every 250ms */
 #define DEFAULT_REBOOT_SECONDS	86400
 #define LAN_READ_CHUNK_SIZE	2048
 /* Don't allow remote clients to consume all of our memory */
@@ -572,7 +573,7 @@ static int comm(int fd_in, int fd_out, int master_socket, int flags)
 	while(!quit) {
 		int fd;
 
-		fd = hmcfgusb_poll(dev, 1000);	/* Wakeup device/bus at least once a second */
+		fd = hmcfgusb_poll(dev, POLL_TIMEOUT_MS);
 		if (fd >= 0) {
 			if (fd == master_socket) {
 				int client;