I just wanted to verify the empeg came with a 9 pin null modem cable, correct? I'm assuming so since my cable appears to have one broken wire, and when the cable is hooked up one way, I can see the empeg talking to my system, but can't send any text to it. Flip the cable around, and I can send commands to the player, but never see any text back from the player. This kind of problem puts a damper on developing on the empeg :-)

Yes, it's a 9 pin female-female null modem cable. In other words, the TX and RX wires are cross connected.

- Kim

Is there any way to control the mixer beyond the mute code on the dev site? Now that I went deaf from my startup sound playing in the car at 0db, I want to change my player to play the startup sound at 0db if on AC and -20 or so if in the car. Even better would be a way to play it at the same volume level the player was last playing at for both AC and DC.

Good question. When I briefly tested playing sounds on my environment, everything sounded nice on my home stereo but when I put it into car I noticed it was way too loud.

I haven't figured out how to change it yet (not tried that much either), but atleast the 'include/asm-arm/arch-sa1100/empeg.h' file in the kernel source code has the following:

/* Sound IOCTLs */ /* Make use of the bitmasks in soundcard.h, we only support. * PCM, RADIO and LINE. */

#define EMPEG_MIXER_MAGIC 'm' #define EMPEG_DSP_MAGIC 'a'

#define EMPEG_MIXER_READ_SOURCE _IOR(EMPEG_MIXER_MAGIC, 0, int) #define EMPEG_MIXER_WRITE_SOURCE _IOW(EMPEG_MIXER_MAGIC, 0, int) #define EMPEG_MIXER_READ_FLAGS _IOR(EMPEG_MIXER_MAGIC, 1, int) #define EMPEG_MIXER_WRITE_FLAGS _IOW(EMPEG_MIXER_MAGIC, 1, int) #define EMPEG_MIXER_READ_DB _IOR(EMPEG_MIXER_MAGIC, 2, int) #define EMPEG_MIXER_WRITE_LOUDNESS _IOW(EMPEG_MIXER_MAGIC, 4, int) #define EMPEG_MIXER_READ_LOUDNESS _IOR(EMPEG_MIXER_MAGIC, 4, int) #define EMPEG_MIXER_READ_LOUDNESS_DB _IOR(EMPEG_MIXER_MAGIC, 5, int) #define EMPEG_MIXER_WRITE_BALANCE _IOW(EMPEG_MIXER_MAGIC, 6, int) #define EMPEG_MIXER_READ_BALANCE _IOR(EMPEG_MIXER_MAGIC, 6, int) #define EMPEG_MIXER_READ_BALANCE_DB _IOR(EMPEG_MIXER_MAGIC, 7, int) #define EMPEG_MIXER_WRITE_FADE _IOW(EMPEG_MIXER_MAGIC, 8, int) #define EMPEG_MIXER_READ_FADE _IOR(EMPEG_MIXER_MAGIC, 8, int) #define EMPEG_MIXER_READ_FADE_DB _IOR(EMPEG_MIXER_MAGIC, 9, int) #define EMPEG_MIXER_SET_EQ _IOW(EMPEG_MIXER_MAGIC, 10, int) #define EMPEG_MIXER_GET_EQ _IOR(EMPEG_MIXER_MAGIC, 11, int) #define EMPEG_MIXER_SET_EQ_FOUR_CHANNEL _IOW(EMPEG_MIXER_MAGIC, 12, int) #define EMPEG_MIXER_GET_EQ_FOUR_CHANNEL _IOR(EMPEG_MIXER_MAGIC, 13, int) #define EMPEG_MIXER_GET_COMPRESSION _IOR(EMPEG_MIXER_MAGIC, 14, int) #define EMPEG_MIXER_SET_COMPRESSION _IOW(EMPEG_MIXER_MAGIC, 14, int) #define EMPEG_MIXER_SET_SAM _IOW(EMPEG_MIXER_MAGIC, 15, int)

/* Retrieve volume level corresponding to 0dB */ #define EMPEG_MIXER_READ_ZERO_LEVEL _IOR(EMPEG_MIXER_MAGIC, 3, int)

#define EMPEG_MIXER_FLAG_MUTE (1<<0) /*#define EMPEG_MIXER_FLAG_LOUDNESS (1<<1)*/

So, I wonder what one could do with i.e. EMPEG_MIXER_WRITE_LOUDNESS and similar IOCTL's. As I said, I haven't tested yet -- let me know if you or someone will find out more...

- Kim