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atmel_serial: RS485: receiving enabled when sending data

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By default the atmel_serial driver in RS485 mode disables receiving data until
all data in the send buffer has been sent. This flag allows to receive data
even whilst sending data.

Signed-off-by: Bernhard Roth <br@pwrnet.de>
Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bernhard Roth
2011-08-24 09:48:23 +02:00
committed by Greg Kroah-Hartman
parent 019dc9ea8d
commit 83cac9f3b4
3 changed files with 10 additions and 3 deletions
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3
Documentation/serial/serial-rs485.txt
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@@ -104,6 +104,9 @@
rs485conf.flags |= SER_RS485_RTS_AFTER_SEND;
rs485conf.delay_rts_after_send = ...;
/* Set this flag if you want to receive data even whilst sending data */
rs485conf.flags |= SER_RS485_RX_DURING_TX;
if (ioctl (fd, TIOCSRS485, &rs485conf) < 0) {
/* Error handling. See errno. */
}