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Code Issues Releases Wiki Activity

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
This commit is contained in:
patacongo 2011-12-01 23:08:27 +00:00
parent 0fd408ca95
commit f1b07efc09
1 changed files with 14 additions and 2 deletions
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16
drivers/input/tsc2007.c
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@ -83,6 +83,14 @@
#undef CONFIG_TSC2007_REFCNT #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 ***********************************************************/ /* Driver support ***********************************************************/
/* This format is used to construct the /dev/input[n] device driver path. It /* 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. * 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); FAR struct tsc2007_sample_s *sample);
static int tsc2007_waitsample(FAR struct tsc2007_dev_s *priv, static int tsc2007_waitsample(FAR struct tsc2007_dev_s *priv,
FAR struct tsc2007_sample_s *sample); FAR struct tsc2007_sample_s *sample);
#ifdef CONFIG_TSC2007_ACTIVATE
static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd); 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 int tsc2007_transfer(FAR struct tsc2007_dev_s *priv, uint8_t cmd);
static void tsc2007_worker(FAR void *arg); static void tsc2007_worker(FAR void *arg);
static int tsc2007_interrupt(int irq, FAR void *context); static int tsc2007_interrupt(int irq, FAR void *context);
@ -405,6 +415,7 @@ errout:
* Name: tsc2007_activate * Name: tsc2007_activate
****************************************************************************/ ****************************************************************************/
#ifdef CONFIG_TSC2007_ACTIVATE
static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd) static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd)
{ {
struct i2c_msg_s msg; struct i2c_msg_s msg;
@ -442,6 +453,9 @@ static int tsc2007_activate(FAR struct tsc2007_dev_s *priv, uint8_t cmd)
} }
return ret; return ret;
} }
#else
# define tsc2007_activate(p,c)
#endif
/**************************************************************************** /****************************************************************************
* Name: tsc2007_transfer * 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 inode *inode;
FAR struct tsc2007_dev_s *priv; FAR struct tsc2007_dev_s *priv;
pollevent_t eventset;
int ndx;
int ret = OK; int ret = OK;
int i; int i;