Re: [cobalt-developers] RaQ3 front LEDs

[Michael Stauber <devel@xxxxxxxxxxxxxx>]

Hi Andy,

> No! I mean the LED's on the front panel of the RaQ3 unit
> (tx/rx, link, col, 100M, disk, web and the cobalt logo with green
> illumination)
>
> I know that probably only the web/cobalt logo could be controlled, since
> others are linked to hardware.

Once when I took the Cobalt Apache apart I found the code which triggers the 
web LED:

#ifdef COBALT_RAQ_LED
#include <linux/lcd.h>

#ifdef COBALT_RAQ_LED
    struct lcd_display display;
    static int ap_lcd_fd = -1;

    if (ap_lcd_fd < 0)
      ap_lcd_fd = open("/dev/lcd", O_RDWR);

    memset(&display, 0, sizeof(display));
    display.leds = LED_WEBLIGHT;
    ioctl(ap_lcd_fd, LED_Bit_Set, &display);
#endif

#ifdef COBALT_RAQ_LED
    display.leds = LED_WEBLIGHT;
    ioctl(ap_lcd_fd, LED_Bit_Clear, &display);
#endif

The lcd.h can be found here: /usr/include/linux/lcd.h

Excerpt:

/* the set of all leds available on Cobalt systems */
#define LED_SHUTDOWN            (1 << 0)
#define LED_WEBLIGHT            (1 << 1)
#define LED_COBALTLOGO          (1 << 2)
#define LED_ETH0_TXRX           (1 << 3)
#define LED_ETH0_LINK           (1 << 4)
#define LED_ETH1_TXRX           (1 << 5)
#define LED_ETH1_LINK           (1 << 6)
#define LED_DISK0               (1 << 7)
#define LED_DISK1               (1 << 8)
#define LED_DISK2               (1 << 9)
#define LED_DISK3               (1 << 10)
#define LED_SYSFAULT            (1 << 11)
#define LED_HEART               (1 << 12)
#define LED_SPARE               (1 << 13)
#define LED_SLED0               (1 << 14)
#define LED_SLED1               (1 << 15)
#define LED_SLED2               (1 << 16)
#define LED_SLED3               (1 << 17)
#define LED_SPARE2              (1 << 18)


I'm not sure if that helps.

-- 

With best regards,

Michael Stauber
mstauber@xxxxxxxxxxxxxx
Unix/Linux Support Engineer