16 Nov, 2011
1 commit
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The crisv10.c and the atmel_serial.c serial drivers intepret the fields of the
serial_rs485 structure in a different way.In particular, crisv10.c uses SER_RS485_RTS_AFTER_SEND and
SER_RS485_RTS_ON_SEND for the voltage of the RTS pin; atmel_serial.c,
instead, uses these values to know if a delay must be set before and
after sending. This patch makes the usage of these variables consistent
across all drivers and fixes the Documentation as well.From now on, SER_RS485_RTS_AFTER_SEND and SER_RS485_RTS_ON_SEND will be
used to set the voltage of the RTS pin (as in the crisv10.c driver); the
delay will be understood by looking only at the value of
delay_rts_before_send and delay_rts_after_send.Signed-off-by: Claudio Scordino
Signed-off-by: Darron Black
Acked-by: Jesper Nilsson
Acked-by: Nicolas Ferre
Acked-by: Alan Cox
Signed-off-by: Greg Kroah-Hartman
19 Oct, 2011
1 commit
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Generic bindings for RS485 feature included in some UARTs.
Those bindings have to be used withing an UART device tree node.
Documentation updated to link to the bindings definition.Signed-off-by: Nicolas Ferre
Acked-by: Grant Likely
Signed-off-by: Greg Kroah-Hartman
25 Aug, 2011
1 commit
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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
Signed-off-by: Claudio Scordino
Acked-by: Alan Cox
Signed-off-by: Greg Kroah-Hartman
01 Dec, 2010
1 commit
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Add a notion about 16C950 UART, that is using DTR signal for RS485 mode.
Signed-off-by: Yegor Yefremov
Signed-off-by: Greg Kroah-Hartman
12 Nov, 2010
1 commit
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Documentation about RS485 serial communications
Signed-off-by: Claudio Scordino
Acked-by: Randy Dunlap
Acked-by: Russell King
Acked-by: Grant Edwards
Signed-off-by: Greg Kroah-Hartman