the DBG macro only prints if the proper environment var is set: SANE_DEBUG_BACKENDNAME scanimage -L
but change 'BACKENDNAME' to an all-capital version of your backend name. allan On 6/10/08, eagleskycloud <eagleskycloud at gmail.com> wrote: > > Hi > > I look up the <sane/sanei_debug.h>, and I also refer to the backends > wrote by others, but I still confused how to use DBG(level, fmt, ...) to > output specific information. e.g. I define below macro follow the > sanei_debug.h, > #include <sane/sanei_debug.h> > #define BACKEND_NAME MY_BACKEND > #define FUNCTION_DETAIL 1 > #define FUNCTION_TRACE 2 > > I call DBG_INIT() in sane_init (). In some functions I use DBG(1, "%d", > param) and DBG(2, "%d", msg) to output debug information. But the backend > doesn't output any information that I wanted while I debug it . Does anyone > tell me what should I do to output these debug information? > > Thank you. > > -- > sane-devel mailing list: > sane-devel at lists.alioth.debian.org > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > Unsubscribe: Send mail with subject "unsubscribe your_password" > to sane-devel-request at lists.alioth.debian.org > -- "The truth is an offense, but not a sin"
