i dont know what really your problem is, but when i need to transfer data from user to kernel i pass the user virtual address pointer(contiguous memory) as a ARG to the ioctl function and then use this pointer in the kernel to access data.
-troy --- "Nasikkar,Ashutosh" <[EMAIL PROTECTED]> wrote: > Hi ppl, > > I am facing a issue in IOCTL calls. > IOCTL accepts user space data and gives it to kernel > space, for a kernel module's execution. > There appears to be a limit of 4096 bytes which can > be copied from user space to kernel space > in this IOCTL call. > I would like to increase this limit of 4096 bytes. > > If anyone has faced this problem then kindly let me > know how does one go about solving it. > > > Awaiting help, > > > Ashutosh. > > -- > http://mm.ilug-bom.org.in/mailman/listinfo/linuxers ===== Linux Kernel Consultant Tel : 91-22-2754-6453/4226 __________________________________ Do you Yahoo!? Yahoo! Finance: Get your refund fast by filing online. http://taxes.yahoo.com/filing.html -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
