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2019-04-25docs: serial: convert docs to ReST and rename to *.rstMauro Carvalho Chehab1-95/+0
The converted files are focused at the Kernel internal API, so, this is a good candidate for the kernel API set of books. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-20Documentation: Use "while" instead of "whilst"Will Deacon1-1/+1
Whilst making an unrelated change to some Documentation, Linus sayeth: | Afaik, even in Britain, "whilst" is unusual and considered more | formal, and "while" is the common word. | | [...] | | Can we just admit that we work with computers, and we don't need to | use þe eald Englisc spelling of words that most of the world never | uses? dictionary.com refers to the word as "Chiefly British", which is probably an undesirable attribute for technical documentation. Replace all occurrences under Documentation/ with "while". Cc: David Howells <dhowells@redhat.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michael Halcrow <mhalcrow@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-08-18Documentation: rs485: Do not define manually the ioctlRicardo Ribalda Delgado1-3/+2
It is not a very good practice to define the IOCTL manually instead of using the header file. Fix it on the documentation example. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-06-13Doc: serial-rs485.txt: update RS485 driver interfaceBaruch Siach1-45/+5
Since commit a5f276f10ff7 (serial_core: Handle TIOC[GS]RS485 ioctls., 2014-11-06) serial_core handles RS485 ioctls. Drivers only need to implement the rs485_config callback. Update serial-rs485.txt to reflect these changes. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-26Documentation: serial: fix header pathYegor Yefremov1-1/+1
RS485 related structure will be defined in user space API header. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-11-16RS485: fix inconsistencies in the meaning of some variablesClaudio Scordino1-3/+11
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 <claudio@evidence.eu.com> Signed-off-by: Darron Black <darron@griffin.net> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-19tty/serial: RS485 bindings for device treeNicolas Ferre1-0/+5
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 <nicolas.ferre@atmel.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-25atmel_serial: RS485: receiving enabled when sending dataBernhard Roth1-0/+3
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>
2010-12-01RS485 documentation: add 16C950 UART descriptionYegor Yefremov1-4/+5
Add a notion about 16C950 UART, that is using DTR signal for RS485 mode. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-11-11serial: add Documentation about RS485 serial communicationsClaudio Scordino1-0/+119
Documentation about RS485 serial communications Signed-off-by: Claudio Scordino <claudio@evidence.eu.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: Grant Edwards <grant.b.edwards@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>