[linuxdc-dev]More maple & microphone

[Adrian M. <ad...@mc...>]

Apologies for boring everyone but I am testing out ideas and this is the best 
place to try:

I have this code:

static void dc_microphone_callback(struct maple_driver_data *data)
{

	struct mapleq *mq=& data->mq;
	struct dc_microphone *mic = data->private_data;
	/* Have we got data */
/*  	length = mq->length; */
	int x = 0;
  	unsigned char *buf = mq->recvbuf;

/*   	memcpy(mic->snd, mq->buf, length*2); */

	//char* buf = (char *)((mq->recvbuf) + 4);
	printk("Maple reply (%d, %d) cmd=%d => %d\n", mq->port, mq->unit, 
mq->command, mq->recvbuf[0]);
	for (x = 0; x < 20; x++) printk("%i,",mq->recvbuf[x]);
	printk("   ");
     
}

Generally speaking the Maple reply string is:

"Maple reply (1, 1) cmd=9 => -3"

Which I take to mean that the microphone just doesn't understand the "Get 
condition" command (ie returns -3 meaning "Unknown command").

The first four values of recvbuf are -3, 64, 65, 0. Meaning (I think): 
Unknown command reposnse sent to Port B from subperipherial 1 on Port B, no 
further words in frame: all of which makes sense. (Stop me if I am going 
wrong here!)

But this leaves me with a problem - viz: if it doesn't send data in response 
to this command what does it send it in response to?!

Adrian