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cdcacm:support returning c_cflag & speed via termios

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Implementation was incomplete. This can now be
   used to pass the lincodeing information to
   a real serial port.
This commit is contained in:
David Sidrane 2022-01-27 12:02:05 -08:00 committed by Petro Karashchenko
parent e0b62bf677
commit 341bfeb8b6
1 changed files with 9 additions and 1 deletions
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10
drivers/usbdev/cdcacm.c
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@ -2342,7 +2342,11 @@ static int cdcuart_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
termiosp->c_iflag = serdev->tc_iflag;
termiosp->c_oflag = serdev->tc_oflag;
termiosp->c_lflag = serdev->tc_lflag;
termiosp->c_cflag = CS8;
termiosp->c_cflag =
((priv->linecoding.parity != CDC_PARITY_NONE) ? PARENB : 0) |
((priv->linecoding.parity == CDC_PARITY_ODD) ? PARODD : 0) |
((priv->linecoding.stop == CDC_CHFMT_STOP2) ? CSTOPB : 0) |
CS8;
#ifdef CONFIG_CDCACM_OFLOWCONTROL
/* Report state of output flow control */
@ -2354,6 +2358,10 @@ static int cdcuart_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
termiosp->c_cflag |= (priv->iflow) ? CRTS_IFLOW : 0;
#endif
cfsetispeed(termiosp, (speed_t) priv->linecoding.baud[3] << 24 |
(speed_t) priv->linecoding.baud[2] << 16 |
(speed_t) priv->linecoding.baud[1] << 8 |
(speed_t) priv->linecoding.baud[0]);
}
break;