From: Manish RATHI <manish.rathi@st.com>
To: <linux-kernel@vger.kernel.org>
Subject: query regarding serial driver for ARM
Date: Tue, 25 Apr 2006 11:52:13 +0530 [thread overview]
Message-ID: <003901c66830$97a4b2b0$802cc70a@dlh.st.com> (raw)
Hi,
I am loosing characters in serial transfer in case user buffer size is very small. This loss is due to tty buffer overflow.
I am using pl1011 serial driver. Hardware provided hardware flow control (RTS/CTS) based on FIFO thresholds. At the same time software also control the RTS/CTS pins in case of uart_throttle i.e. tty buffer overflow. In my hardware, software control of pins is not possible if it's already done by hardware. So effectilvely uart_throttle() defined in serial driver core framework function has no effect.
Can anybody help me in this regard?
Regards
Manish
reply other threads:[~2006-04-25 6:22 UTC|newest]
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