please help me am getting this error
logs
/etc/init.d/dahdi restart
Unloading DAHDI hardware modules: ERROR: Module wctdm24xxp is in use
ERROR: Module wctdm24xxp is in use
ERROR: Module dahdi_voicebus is in use by wctdm24xxp
ERROR: Module dahdi_echocan_mg2 is in use
ERROR: Module dahdi is in use by dahdi_echocan_mg2,wctdm24xxp,dahdi_voicebus
error
Loading DAHDI hardware modules:
wctdm24xxp: [ OK ]
Running dahdi_cfg: [ OK ]
DADHI_SPECIFY ioctl failed: Device or resource busy
Missing ‘/sys/bus/astribanks/drivers/xppdrv/sync’