> François Revol <revol@xxxxxxx> wrote: > >> > 1) PCIe memory card reader >> >> mmc and others ? Why does it need PCI Express ? > > I'm not sure, but I assume it's this one: > http://www.jmicron.com/JMB38X.html > > I guess using PCI Express is a cheap way to add additional > functionality to be integrated on current motherboards. Just like > the additional ahci controller thats integrated on my motherboard. Looks like that and that would require MMC/SD drivers as well. So this would give use a greater chance of having Haiku on a SD card :) http://www10.edacafe.com/IP/view.php?ip_id=2861 I have begun to investigate MMC/SD cards on my dell (x300) But I do have some questions and thought  What are the physical different between these? add-ons/kernel/bus_managers add-ons/kernel/busses add-ons/kernel/drivers/bus On My Dell x300 I have a SD card reader. By looking on different Linux forums it looks like the Bus manager are a Ricoh Co Ltd RL5c476 II (if I have guessed correct) Busses would be the SD card reader and SPI? And the bus the card it self? Perhaps with SDIO? When investigate this I have come across these links http://mmc.drzeus.cx/wiki/Welcome http://elm-chan.org/docs/mmc/mmc_e.html http://en.wikipedia.org/wiki/Secure_Digital_card http://elm-chan.org/docs/spi_e.html http://en.wikipedia.org/wiki/Multimedia_Card http://www.maxim-ic.com/appnotes.cfm/an_pk/3969 http://kerneltrap.org/Linux/MMC_Flash_Memory_Card_Support According to how things are done on Linux they have created a SPI protocol of some sort and SDIO are using those to talk to the hardware. As you probably have noticed by now I don’t really know these things  //Fredrik > >> Don't think I'll have time; plus I don't have any PCIe slot :P > > You are so retro ;) > > Marcus > > Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren > ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT FÜR ALLE NEUEINSTEIGER > Jetzt bei Arcor: günstig und schnell mit DSL - das All-Inclusive-Paket > für clevere Doppel-Sparer, nur 29,95 € inkl. DSL- und ISDN-Grundgebühr! > http://www.arcor.de/rd/emf-dsl-2 > > -- MVH Fredrik Modéen