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hd44780: Add keystring array boundary check. Have all subdrivers close

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previously opened devices.
This commit is contained in:
mmdolze
2010-01-10 17:07:48 +00:00
parent 97a2b20b0d
commit 6fba5cef68
5 changed files with 43 additions and 5 deletions
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server/drivers/hd44780-i2c.c
+14
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@@ -75,6 +75,7 @@
void i2c_HD44780_senddata(PrivateData *p, unsigned char displayID, unsigned char flags, unsigned char ch);
void i2c_HD44780_backlight(PrivateData *p, unsigned char state);
void i2c_HD44780_close(PrivateData *p);
#define RS 0x10
#define RW 0x20
@@ -163,6 +164,7 @@ hd_init_i2c(Driver *drvthis)
hd44780_functions->senddata = i2c_HD44780_senddata;
hd44780_functions->backlight = i2c_HD44780_backlight;
hd44780_functions->close = i2c_HD44780_close;
// powerup the lcd now
/* We'll now send 0x03 a couple of times,
@@ -216,6 +218,18 @@ hd_init_i2c(Driver *drvthis)
}
/**
* Close the device.
* \param p Pointer to driver's private data structure.
*/
void
i2c_HD44780_close(PrivateData *p) {
if (p->fd >= 0) {
close(p->fd);
}
}
/**
* Send data or commands to the display.
* \param p Pointer to driver's private data structure.