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Re: whats wrong with my mmap code?


       qcard->memaccess = ioremap(qcard->memstart, qcard->memlen);

   unsigned long physical = (unsigned long) qcard->memaccess + off;
 
 
   if (remap_pfn_range(vma, vma->vm_start, phys_to_pfn(physical), vsize,
               vma->vm_page_prot))
       return -EAGAIN;
 
 
qcard->memaccess is not physical address .
 
Regards
Srinivas Bakki