On Thu, Mar 02, 2006, Rainer.scherg wrote: > Johannes Stezenbach wrote: > >> > >>I think it's more useful for the lib to query for specific > >>API/driver capabilites than for a version number. > >> > Querying driver capabilities is of course necessary. > But a version information about the API version, too. > > Currently is more or less guessing during compile time > what API is present. Using major/minor numbering scheme > we can tell an application (or user space library), if > it's able to run on a machine. For compile time there is linux/dvb/version.h. But the lib should support any kernel, so there are two choices (pseudo code): 1. ioctl(FE_GET_VERSION); if (api_version_minor > 1) /* assume FE_SET_STANDARD is available */ 2. ioctl(FE_GET_CAPS); if (caps & FE_CAP_SET_STANDARD) /* we know FE_SET_STANDARD is available */ My personal preference is 2. Johannes _______________________________________________ linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
