mwavem - Mwave/ACP modem support daemon

mwavem [ <conffile> ]

mwavem implements a Hayes-compatible V.90 modem in the International Business Machines Corp. (IBM) 3780i Mwave Advanced Communications Processor (Mwave/ACP) Digital Signal Processor (DSP) chip which is built in to certain IBM ThinkPad laptop computers, including the ThinkPad 600, 600E and 770.

mwavem runs in user space, loading the DSP with instructions as required. It must have adequate permission to access the mwave device node associated with the mwave kernel device driver. The driver code is included in the latest (as of January 2002) 2.4 Linux kernel sources. To build the module, set "ACP/Mwave Modem support" under "Character devices" to "m" at kernel configuration time. Source code is available from IBM which can be used to build a module compatible with earlier kernels.

<conffile> is the mwavem configuration file. The default is /etc/mwavem.conf. (In Debian, the configuration file is /etc/mwavem/mwavem.conf.)

/etc/mwavem.conf

the configuration file

/dev/mwave

the mwave device

If you are using devfs then the mwave device driver creates a device node at /dev/misc/mwave. devfsd must therefore be configured so as to create a symbolic link from /dev/mwave to /dev/misc/mwave. If you are not using devfs then /dev/mwave must be a char device node with major number 10, minor number 219.

Only the 3780i chip is supported. Earlier Mwave DSPs, which were used for sound generation as well as modem functionality, are not supported.

mwavem was written by Paul Schroeder <paulsch@us.ibm.com> and Mike Sullivan <sullivam@us.ibm.com>