Umpf, I think I have found the usb-ohci ISOC bug (linux-2.4.5ac7)... -Roman
--- drivers/usb.org/usb-ohci.h Sun Jun 3 13:49:15 2001 +++ drivers/usb/usb-ohci.h Thu Jun 7 16:09:51 2001 @@ -116,7 +116,7 @@ dma_addr_t td_dma; dma_addr_t data_dma; __u32 unused2[2]; -} __attribute((aligned(16))); +} __attribute((aligned(32))); typedef struct td td_t; #define OHCI_ED_SKIP (1 << 14)