My blog posts about synology NAS internals

[samm_cz]

Hi,

I did 2 blog posts about Synology device i own - DS207. I think that at least some of the information is relevant for other models. Now i am also working on another post - about /dev/synobios ioctl interface (with usage examples), hibernation and replacing scemd with self-written daemon. I would be glad to see your comments. My blog url is http://smallhacks.wordpress.com/tag/ds207/ . Comments are welcome

[samm_cz]

I added another article about direct manipulation with /dev/synobios and /dev/ttyS0 attached devices - see http://smallhacks.wordpress.com/2012/04 ... -devttys1/ .

[banneduser]

I added another article about direct manipulation with /dev/synobios and /dev/ttyS0 attached devices - see http://smallhacks.wordpress.com/2012/04 ... -devttys1/ .

Well done, thanks. Managed to fix the HDD LED on my crappy DS107 running the latest totally unsupported DSM-4.0. Somehow setting the LED to green solid on boot in rc.local makes the junky scemd thing show disk activity perfectly fine. The status led can be manipulated as well, but that is more like cosmetics.

Relevant part of my /etc/rc.local:

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# Set Status LED to solid green now that boot finished
printf "\\x38" > /dev/ttyS1
# And set internal HDD LED to solid green as well
[ -x /opt/local/bin/hddled_green_solid ] && /opt/local/bin/hddled_green_solid > /dev/null 2>&1

Basically nuked everything else from your sample source code, leaving just the following:

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/* userland test for the synology /dev/ioctl interface */
/* (c) Alex Samorukov, samm@os2.kiev.ua */

#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <linux/ioctl.h>
#include <unistd.h>
#include "synobios.h"

int main()
{
   int syno_fd;
      int ret, i;
   DISKLEDSTATUS diskled;

   // open ioctl api
   syno_fd = open("/dev/synobios", O_RDONLY,0);
   if (syno_fd == -1) {
      printf("/dev/synobios open error\n");
      exit(1);
      
   }
   // setting internal HDD LED to green
   printf("Changing color of Internal HDD LED to Solid Green\n");
   diskled.status=DISK_LED_GREEN_SOLID;
   diskled.diskno=1;
   // setting led for hdd1
   ioctl(syno_fd, SYNOIO_SET_DISK_LED, &diskled);
   CPLDREG cpldreg;
   ioctl(syno_fd, SYNOIO_GET_CPLD_REG, &cpldreg);
   printf("CPLD regs: %x,%x,%x,%x\n",cpldreg.diskledctrl,cpldreg.diskpowerstate,cpldreg.modelnumber,cpldreg.fanstatus);
   close(syno_fd);
   return 0;
}


and compiled with the optware toolchain, just simple

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gcc syno_test.c -o /opt/local/bin/hddled_green_solid