Marvell 8385 datasheet

[Cyril HAENEL]

Cyril HAENEL a écrit :
> Hi,
>
> Anyone know where I can found the marvell 8385 chip datasheet ? I know 
> it exists a command to enter the chip in standby mode, to have a very 
> low current consumption.
> I want to modify the libertas driver to send this command to the chip 
> during the driver unloading.
>
> The goal is to save power on my board. Actually I power off the pcmcia 
> socket but on my board I have not implemented buffers between the bus 
> and the wifi card, and not implemented the ability to physically cut 
> the power line of the wifi card.
> Actually after I powered off the pcmcia socket (to properly unload the 
> cs libertas driver), I force the wifi card reset line and it enters a 
> relatively low consumption : 40mA.
>
> But now I want to do more and send the standby command during libertas 
> driver unloading. Whis this command, I know that the wifi card should 
> consume 5mA only...
>
> Regards,
> Cyril HAENEL
>
>
I answer to myself : I found again the file I was looking for....
It's the marvell firmware version 5.1 specification...
Full power down seem's to be activated by sending the 
CMD_802_11_DEEP_SLEEP command (0x3E)
The firmware doesn't answer to this command, thus I think it can be 
pretty easy to send this command juste before the drivers exits.

-- 

Cyril Haenel
Registered Linux User #332632