bool PowerTapDevice::doWrite(CommPortPtr dev, char c, bool hwecho, QString &err) { if (PT_DEBUG) printf("writing '%c' to device\n", c); int n = dev->write(&c, 1, err); if (n != 1) { if (n < 0) err = QString(tr("failed to write %1 to device: %2")).arg(c).arg(err); else err = QString(tr("timeout writing %1 to device")).arg(c); return false; } if (hwecho) { char c; int n = dev->read(&c, 1, err); if (n != 1) { if (n < 0) err = QString(tr("failed to read back hardware echo: %2")).arg(err); else err = tr("timeout reading back hardware echo"); return false; } } return true; }
bool MacroPacket::write(CommPortPtr dev, QString &err) { const char *msg = cEscape(data(), payload.count()+2).toLatin1().constData(); if (MACRO_DEBUG) printf("writing '%s' to device\n", msg); int n = dev->write(data(), payload.count()+2, err); if (n != payload.count()+2) { if (n < 0) { if (MACRO_DEBUG) printf("failed to write %s to device: %s\n", msg, err.toLatin1().constData()); err = QString(tr("failed to write to device: %1")).arg(err); } else { if (MACRO_DEBUG) printf("timeout writing %s to device\n", msg); err = QString(tr("timeout writing to device")); } return false; } if (MACRO_DEBUG) printf("writing to device ok\n"); return true; }