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Tweak shaky GQ Geiger communication

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Steffen 2019-04-18 13:32:21 +02:00
parent b7f3683e72
commit fcc206bac0
1 changed files with 2 additions and 2 deletions
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4
gqgeiger.c
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@ -35,7 +35,7 @@ int gq_get_cpm(int device) {
if (gq_write(device, cmd) == (ssize_t) strlen(cmd))
gq_read(device, buf, 2);
return buf[0] * 256 + buf[1];
return (buf[0] & 0x3f) * 256 + buf[1]; // upper 2 bits masked out
}
bool gq_set_heartbeat_off(int device) {
@ -82,7 +82,7 @@ bool gq_write_ack(int device, const char *cmd) {
}
int gq_write(int device, const char *cmd) {
return write(device, cmd, strlen(cmd));
return gq_flush(device) ? write(device, cmd, strlen(cmd)) : -1; // clear buffer before send
}
int gq_read(int device, char *buf, unsigned int len) {