Hi all, i have a MPC8347E running with the Freescale E(F)HCI driver and Kernel 2.6.17 (Freescale LTIB).
Because of this mail, i checked, if there are any periodical interrupts, without real USB payload. The result is: NO If i attach a USB-mouse, i get 5 interrupts. If i remove it again, 1 additional. Nothing else, silence ! USB works well with USB 1.1 and 2.0 devices (This was not the case with earlier Kernels, e.g. 2.6.13, because for the switching between 1.1 and 2.0 you need a transaction translator driver). -- Mit freundlichen Gruessen / Best regards Claus Gindhart SW R&D Kontron Modular Computers phone :++49 (0)8341-803-374 mailto:claus.gindhart at kontron-modular.com http://www.kontron.com -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GU d- s++:>++:+ a+ C++$ !U !P L++>$ E-- W+(-) N- o? K? w !O !M V !PS PE- Y+ PGP+ t 5? X R* tv- b+ DI+++ D-- G e++> h--- !r x+++ ------END GEEK CODE BLOCK------ -----Original Message----- From: [EMAIL PROTECTED] [mailto:linuxppc-embedded-bounces+claus.gindhart=kontron.com at ozlabs.org] On Behalf Of Alex Zeffertt Sent: Donnerstag, 7. September 2006 12:59 To: Li Yang-r58472 Cc: n.balaji at gdatech.co.in; linuxppc-embedded at ozlabs.org Subject: Re: MPC8360E USB Host Controller Driver >> manual, they told that this controller does not belong to >> UHCI or OHCI standard. > > Yes, you can call it FHCI if you like. :) I heard that on the PQII (82xx) devices the FHCI required intervention from the core, even when there was zero traffic on the USB. I think this was because the core had to continuously service a 1ms interrupt. This generates significant extra loading, making it worth considering using a cheap EHCI chip instead.... Does anyone know if this is still the case with the PQII Pro (83xx)? Alex _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
