Messages in this thread | | | Date | Wed, 22 Jul 1998 11:34:31 +1000 | From | Richard Gooch <> | Subject | Re: Re:[PATCH] New phys_addr() syscall |
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Inaky Perez Gonzalez writes: > >>>>> "Richard" == Richard Gooch <Richard.Gooch@atnf.csiro.au> writes: > > Hi > > Richard> Hi, all. I've implemented a simple new system call called > Richard> phys_addr() which converts a virtual address to a physical > Richard> address. > > Cool. I needed some of this for the USB Stack; I've been using > something I found at linux/drivers/char/bttv.c, as I wanted to be able > to directly do PCI read and writes to user space. > > Could the interface be extended to be used from kernel-land? > It seems to be _non_ standard.
It's such a simple operation, I don't see much point in having a function. I don't know what you mean by non-standard. Sure, it's a non-standard API for userspace, since it's new. But it uses standard kernel functions.
Regards,
Richard....
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