Herrera-Bendezu, Luis wrote: > Hello, > > I am writing an RTDM driver to replace one that uses UIO. The device > resides in a physical address > 4 GB on a PPC440EPx. The UIO could > not handle this address so I made a proposal to address it, details at: > http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-April/070097.html > > Function rtdm_iomap_to_user() has same issue with the physical I/O > address > unsigned long src_addr > > I am new to Xenomai and would like to get some ideas on how to solve > this > issue.
I think UIO as well as RTDM suffers from the same problem here: The kernel service used to remap the physical memory (remap_pfn_range) accepts unsigned long, not phys_addr_t. How is this supposed to work? Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux _______________________________________________ Xenomai-core mailing list Xenomaiemail@example.com https://mail.gna.org/listinfo/xenomai-core