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Date:	Sat, 19 Jul 2014 14:53:03 +0300
From:	Sam Asadi <asadi.samuel@...il.com>
To:	gregkh@...uxfoundation.org
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Sam Asadi <asadi.samuel@...il.com>
Subject: [PATCH 1/1] Staging: comedi: adl_paci9118: organized entry comments

Introductory comments organized according to Linux's comment
coding style.

Signed-off-by: Sam Asadi <asadi.samuel@...il.com>
---
 drivers/staging/comedi/drivers/adl_pci9118.c |  109 +++++++++++++-------------
 1 file changed, 55 insertions(+), 54 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index a715cd3..f916632 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -7,61 +7,62 @@
  *
  * Author: Michal Dobes <dobes@...net.cz>
  *
-*/
+ */
+
 /*
-Driver: adl_pci9118
-Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR
-Author: Michal Dobes <dobes@...net.cz>
-Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg),
-  PCI-9118HR (pci9118hr)
-Status: works
-
-This driver supports AI, AO, DI and DO subdevices.
-AI subdevice supports cmd and insn interface,
-other subdevices support only insn interface.
-For AI:
-- If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
-- If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
-- If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
-- It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
-  cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
-- If return value of cmdtest is 5 then you've bad channel list
-  (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
-  ranges).
-
-There are some hardware limitations:
-a) You cann't use mixture of unipolar/bipoar ranges or differencial/single
-   ended inputs.
-b) DMA transfers must have the length aligned to two samples (32 bit),
-   so there is some problems if cmd->chanlist_len is odd. This driver tries
-   bypass this with adding one sample to the end of the every scan and discard
-   it on output but this cann't be used if cmd->scan_begin_src=TRIG_FOLLOW
-   and is used flag TRIG_WAKE_EOS, then driver switch to interrupt driven mode
-   with interrupt after every sample.
-c) If isn't used DMA then you can use only mode where
-   cmd->scan_begin_src=TRIG_FOLLOW.
-
-Configuration options:
-  [0] - PCI bus of device (optional)
-  [1] - PCI slot of device (optional)
-	If bus/slot is not specified, then first available PCI
-	card will be used.
-  [2] - 0= standard 8 DIFF/16 SE channels configuration
-	n = external multiplexer connected, 1 <= n <= 256
-  [3] - 0=autoselect DMA or EOC interrupts operation
-	1 = disable DMA mode
-	3 = disable DMA and INT, only insn interface will work
-  [4] - sample&hold signal - card can generate signal for external S&H board
-	0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic
-	0 != use ADCHN7(pin 23) signal is generated from driver, number say how
-		long delay is requested in ns and sign polarity of the hold
-		(in this case external multiplexor can serve only 128 channels)
-  [5] - 0=stop measure on all hardware errors
-	2 | = ignore ADOR - A/D Overrun status
-	8|=ignore Bover - A/D Burst Mode Overrun status
-	256|=ignore nFull - A/D FIFO Full status
-
-*/
+ * Driver: adl_pci9118
+ * Description: Adlink PCI-9118DG, PCI-9118HG, PCI-9118HR
+ * Author: Michal Dobes <dobes@...net.cz>
+ * Devices: [ADLink] PCI-9118DG (pci9118dg), PCI-9118HG (pci9118hg),
+ * PCI-9118HR (pci9118hr)
+ * Status: works
+ *
+ * This driver supports AI, AO, DI and DO subdevices.
+ * AI subdevice supports cmd and insn interface,
+ * other subdevices support only insn interface.
+ * For AI:
+ * - If cmd->scan_begin_src=TRIG_EXT then trigger input is TGIN (pin 46).
+ * - If cmd->convert_src=TRIG_EXT then trigger input is EXTTRG (pin 44).
+ * - If cmd->start_src/stop_src=TRIG_EXT then trigger input is TGIN (pin 46).
+ * - It is not necessary to have cmd.scan_end_arg=cmd.chanlist_len but
+ * cmd.scan_end_arg modulo cmd.chanlist_len must by 0.
+ * - If return value of cmdtest is 5 then you've bad channel list
+ * (it isn't possible mixture S.E. and DIFF inputs or bipolar and unipolar
+ * ranges).
+ *
+ * There are some hardware limitations:
+ * a) You cann't use mixture of unipolar/bipoar ranges or differencial/single
+ *  ended inputs.
+ * b) DMA transfers must have the length aligned to two samples (32 bit),
+ *  so there is some problems if cmd->chanlist_len is odd. This driver tries
+ *  bypass this with adding one sample to the end of the every scan and discard
+ *  it on output but this cann't be used if cmd->scan_begin_src=TRIG_FOLLOW
+ *  and is used flag TRIG_WAKE_EOS, then driver switch to interrupt driven mode
+ *  with interrupt after every sample.
+ * c) If isn't used DMA then you can use only mode where
+ *  cmd->scan_begin_src=TRIG_FOLLOW.
+ *
+ * Configuration options:
+ * [0] - PCI bus of device (optional)
+ * [1] - PCI slot of device (optional)
+ *	 If bus/slot is not specified, then first available PCI
+ *	 card will be used.
+ * [2] - 0= standard 8 DIFF/16 SE channels configuration
+ *	 n = external multiplexer connected, 1 <= n <= 256
+ * [3] - 0=autoselect DMA or EOC interrupts operation
+ *	 1 = disable DMA mode
+ *	 3 = disable DMA and INT, only insn interface will work
+ * [4] - sample&hold signal - card can generate signal for external S&H board
+ *	 0 = use SSHO(pin 45) signal is generated in onboard hardware S&H logic
+ *	 0 != use ADCHN7(pin 23) signal is generated from driver, number say how
+ *		long delay is requested in ns and sign polarity of the hold
+ *		(in this case external multiplexor can serve only 128 channels)
+ * [5] - 0=stop measure on all hardware errors
+ *	 2 | = ignore ADOR - A/D Overrun status
+ *	 8|=ignore Bover - A/D Burst Mode Overrun status
+ *	 256|=ignore nFull - A/D FIFO Full status
+ *
+ */
 
 /*
  * FIXME
-- 
1.7.10.4

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