staging: comedi: quatech_daqp_cs: document the 16-bit registers

All the registers are 8-bit except for the analog output and timer
registers. For clarity, add some comments.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index b7a20f7e9f35f00b875f81c74b9f88a0b8ccc7d9..c575104528cfce1d2629d0dc54be6a72fa338795 100644 (file)
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -111,8 +111,10 @@
 #define DAQP_CMD_SCANRATE_25KHZ                DAQP_CMD_SCANRATE(2)
 #define DAQP_CMD_FIFO_DATA             BIT(0)
 
-#define DAQP_AO_REG                    0x08
-#define DAQP_TIMER_REG                 0x0a
+#define DAQP_AO_REG                    0x08    /* and 0x09 (16-bit) */
+
+#define DAQP_TIMER_REG                 0x0a    /* and 0x0b (16-bit) */
+
 #define DAQP_AUX_REG                   0x0f
 
 #define DAQP_AUX_TRIGGER_TTL           0x00