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uchcom: reject parity and double stop bits as unsupported

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Reviewed by:	hselasky
MFC after:	2 weeks
This commit is contained in:
avg 2018-05-21 21:00:13 +00:00
parent d1650aa51e
commit ae0d438d19
1 changed files with 4 additions and 0 deletions
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4
sys/dev/usb/serial/uchcom.c
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@ -689,6 +689,10 @@ uchcom_pre_param(struct ucom_softc *ucom, struct termios *t)
default:
return (EIO);
}
if ((t->c_cflag & CSTOPB) != 0)
return (EIO);
if ((t->c_cflag & PARENB) != 0)
return (EIO);
if (uchcom_calc_divider_settings(&dv, t->c_ospeed)) {
return (EIO);