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Rename SLCD geometry tructure to attributes; Move MAX contrast to attributes. Add attribute and ioctl commands to get and set SLCD brightness

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This commit is contained in:
Gregory Nutt 2013-05-27 07:26:59 -06:00
parent a423026ef7
commit 819e151ef5
1 changed files with 10 additions and 10 deletions
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20
examples/slcd/slcd_main.c
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@ -71,11 +71,11 @@
struct slcd_test_s struct slcd_test_s
{ {
struct lib_outstream_s stream; /* Stream to use for all output */ struct lib_outstream_s stream; /* Stream to use for all output */
struct slcd_geometry_s geo; /* Size of the SLCD (rows x columns) */ struct slcd_attributes_s attr; /* Size of the SLCD (rows x columns) */
int fd; /* File descriptor or the open SLCD device */ int fd; /* File descriptor or the open SLCD device */
bool initialized; /* TRUE: Initialized */ bool initialized; /* TRUE: Initialized */
uint8_t currow; /* Next row to display */ uint8_t currow; /* Next row to display */
/* The I/O buffer */ /* The I/O buffer */
@ -287,17 +287,17 @@ int slcd_main(int argc, char *argv[])
priv->stream.flush = slcd_flush; priv->stream.flush = slcd_flush;
#endif #endif
/* Get the geometry of the SCLD device */ /* Get the attributes of the SCLD device */
ret = ioctl(fd, SLCDIOC_GEOMETRY, (unsigned long)&priv->geo); ret = ioctl(fd, SLCDIOC_GETATTRIBUTES, (unsigned long)&priv->attr);
if (ret < 0) if (ret < 0)
{ {
printf("ioctl(SLCDIOC_GEOMETRY) failed: %d\n", errno); printf("ioctl(SLCDIOC_GETATTRIBUTES) failed: %d\n", errno);
goto errout_with_fd; goto errout_with_fd;
} }
printf("Geometry rows: %d columns: %d nbars: %d\n", printf("Geometry rows: %d columns: %d nbars: %d\n",
priv->geo.nrows, priv->geo.ncolumns, priv->geo.nbars); priv->attr.nrows, priv->attr.ncolumns, priv->attr.nbars);
/* Home the cursor and clear the display */ /* Home the cursor and clear the display */
@ -322,7 +322,7 @@ int slcd_main(int argc, char *argv[])
/* Increment to the next row, wrapping back to first if necessary. */ /* Increment to the next row, wrapping back to first if necessary. */
if (++priv->currow >= priv->geo.nrows) if (++priv->currow >= priv->attr.nrows)
{ {
priv->currow = 0; priv->currow = 0;
} }