On 14:51 Fri 20 Feb , Ralf Baechle wrote: > You can find the resources either by something like: > > # lspci -vvv -s 1d.1 > 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) (prog-if 00 [UHCI]) > Subsystem: Dell Device 01fe > Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0 > Interrupt: pin B routed to IRQ 21 > Region 4: I/O ports at 6f60 [size=32] > Kernel driver in use: uhci_hcd > > Now let's see how to find this in sysfs: [snip] Hi, Ralf, After careful thought, I think this may be not what I need. Actually libpciaccess, which is a integral component of X now, need this mmap-able resourceN (N=1,2,3..) file. And previously mips don't have these file. This patch just solved this problem. http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=98873f53becea9a8a46972ff252e96fe575b120d What I need is access to this address in userspace: #define LOONGSON2E_IO_PORT_BASE 0x1fd00000UL which is defined in arch/mips/include/asm/mach-lemote/pci.h Or maybe a better idea is to implement ioperm/iopl for mips, as discussed 7 years ago: http://www.linux-mips.org/archives/linux-mips/2002-04/msg00085.html Zhang, Le
