linux-kernel - Re: [PATCH v2 3/4] usb: serial: implement function for F81232

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Message-ID: <54C070B8.2040301@gmail.com>
Date:	Thu, 22 Jan 2015 11:38:32 +0800
From:	Peter Hung <hpeter@...il.com>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
CC:	johan@...nel.org, gregkh@...uxfoundation.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	tom_tsai@...tek.com.tw, peter_hong@...tek.com.tw,
	Peter Hung <hpeter+linux_kernel@...il.com>
Subject: Re: [PATCH v2 3/4] usb: serial: implement function for F81232

Hello,

I'll do it later depend on this series patchs to be accpeted or rejected.

Thanks for your advice

One Thousand Gnomes 於 2015/1/21 下午 10:41 寫道:
>
>> +	if (cflag & PARENB) {
>> +		if (cflag & PARODD)
>> +			new_lcr |= UART_LCR_PARITY; /* odd */
>> +		else
>> +			new_lcr |= SERIAL_EVEN_PARITY; /* even */
>> +	}
>
> If you don't support mark/space also clear CMSPAR in the passed termios
>
>> -	if (old_termios)
>> -		tty_termios_copy_hw(&tty->termios, old_termios);
>
> Also when you set the baud rate compute the resulting actual baud rate
> you generated and set it with
>
> 	/* Don't rewrite B0 */
> 	if (tty_termios_baud_rate(termios))
> 		tty_termios_encode_baud_rate(termios, baud, baud);
>
> so that the application gets told the baud rate it actually got if it
> isn't close to the one they requested.
>
> Alan
>
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