[openbeos-midi] Re: module std_ops function

  • From: Jerome Leveque <jerl1@xxxxxxxxxxxxxxxx>
  • To: openbeos-midi@xxxxxxxxxxxxx
  • Date: Mon, 15 Sep 2003 23:13:37 +0200

Hi, sorry but I can't help help you about that.

Jerome

> Hi,
> When you get_module the very first thing that seems to be called is the 
> B_MODULE_INIT:
>
> my code:
> static status_t
> std_ops(int32 op, ...)
> {
>       dprintf("std_ops 0x%x\n", op);
>       
>       switch(op) {
>       case B_MODULE_INIT:
>               mpu_readlock = create_sem(0, "mpu401 read");
>            //set_sem_owner(mpu_readlock, B_SYSTEM_TEAM);
>               if (mpu_readlock < B_OK)
>                       return mpu_readlock;
>               dprintf("mpu401: B_MODULE_INIT  sem_id:%d\n",mpu_readlock);
>               if (get_module(B_ISA_MODULE_NAME, (module_info **)&gISA) < B_OK)
>               {
>                       dprintf("could not get ISA module\n");
>                 return (B_ERROR);
>               }
>       return B_OK;
>       
>       case B_MODULE_UNINIT:
> ...etc..
> }
>
> Is there a way to determine what is being passed to the 'std_ops( int32, 
> ...)' function?   I'm not clear what the '...' could be or how it works.
>
> I'm returning a B_OK, but it seems that for the AWE64, there is something 
> more that the caller is expecting from the B_MODULE_INIT.  The R5 module 
> works, but with my module code the AWE64 driver does not continue 
> initializing after this point.
>
>
> Greg
>
>
>
>




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