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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-01 23:08:27 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-01 23:08:27 +0000 |
| commit | c7049214583fe91d4cf3b72c7d3f2667a08dbc8e (patch) | |
| tree | 60e6e8da9a6f537c5118f0816ef908df224cb3d9 /nuttx/drivers | |
| parent | 10f4d1753d742ae90506116d9d0199930b4d5bc2 (diff) | |
| download | px4-nuttx-c7049214583fe91d4cf3b72c7d3f2667a08dbc8e.tar.gz px4-nuttx-c7049214583fe91d4cf3b72c7d3f2667a08dbc8e.tar.bz2 px4-nuttx-c7049214583fe91d4cf3b72c7d3f2667a08dbc8e.zip | |
Add comments that indicate that tsc2007_activate is probably not needed
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4131 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/drivers')
| -rw-r--r-- | nuttx/drivers/input/tsc2007.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/nuttx/drivers/input/tsc2007.c b/nuttx/drivers/input/tsc2007.c index 910861af6..544cb1c79 100644 --- a/nuttx/drivers/input/tsc2007.c +++ b/nuttx/drivers/input/tsc2007.c @@ -83,6 +83,14 @@ #undef CONFIG_TSC2007_REFCNT +/* I don't think that it is necessary to activate the converters before + * making meaurements. However, I will keep this functionality enabled + * until I have a change to prove that that activation is unnecessary. + */ + +#undef CONFIG_TSC2007_ACTIVATE +#define CONFIG_TSC2007_ACTIVATE 1 + /* Driver support ***********************************************************/ /* This format is used to construct the /dev/input[n] device driver path. It * defined here so that it will be used consistently in all places. @@ -179,7 +187,9 @@ static int tsc2007_sample(FAR struct tsc2007_dev_s *priv, FAR struct tsc2007_sample_s *sample); static int tsc2007_waitsample(FAR struct tsc2007_dev_s *priv, FAR struct tsc2007_sample_s *sample); +#ifdef CONFIG_TSC2007_ACTIVATE static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd); +#endif static int tsc2007_transfer(FAR struct tsc2007_dev_s *priv, uint8_t cmd); static void tsc2007_worker(FAR void *arg); static int tsc2007_interrupt(int irq, FAR void *context); @@ -405,6 +415,7 @@ errout: * Name: tsc2007_activate ****************************************************************************/ +#ifdef CONFIG_TSC2007_ACTIVATE static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd) { struct i2c_msg_s msg; @@ -442,6 +453,9 @@ static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd) } return ret; } +#else +# define tsc2007_activate(p,c) +#endif /**************************************************************************** * Name: tsc2007_transfer @@ -1059,8 +1073,6 @@ static int tsc2007_poll(FAR struct file *filep, FAR struct pollfd *fds, { FAR struct inode *inode; FAR struct tsc2007_dev_s *priv; - pollevent_t eventset; - int ndx; int ret = OK; int i; |