Date: Thu, 07 Nov 2002 10:51:31 -0500 (EST) From: John Baldwin <jhb@FreeBSD.org> To: Christoph Hellwig <hch@infradead.org> Cc: freebsd-hackers@FreeBSD.ORG, Julien Mabillard <jmab@gve.ch> Subject: Re: sio i/o Message-ID: <XFMail.20021107105131.jhb@FreeBSD.org> In-Reply-To: <20021107150542.A28917@infradead.org>
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On 07-Nov-2002 Christoph Hellwig wrote: > On Thu, Nov 07, 2002 at 09:33:29AM -0500, John Baldwin wrote: >> >> On 07-Nov-2002 Julien Mabillard wrote: >> > hi, >> > can anyone tell me where inb(), outb() are defined >> > in the sources (FreeBSD RELENG_4_7 or CURRENT)? >> > on linux systems this is defined in <sys/io.h> >> >> For FreeBSD should be using bus_space_read_1() and bus_space_write_1() >> instead. However, you can find inb() and outb() in >> <machine/cpufunc.h> on i386 and compatibility macros for some other >> arch's in <machine/bus.h> > > Umm, <sys/io.h> ispurely a userland header on linux, so he's probably > referring to the userland versions of those that are provided by the > linux ports with PC-like hardware.. Doing I/O from userland generally isn't supported. A header with <sys/> is a kernel header though, not a userland one. :) For i386-only, if you do the right calls to obtain permission to do I/O, the functions in machine/cpufunc.h should work however. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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