Further information: It was indeed the USB_OHCI_HCD_PCI option. ohci-pci was split from ohci_hcd with: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1117afb85890adf4073c7ff18ebcb4d0495e6af
In BB, the usb controller was detected by ohci_hcd. At some point after the BB kernel version, the USB controller started to be detected only by ohci-pci and not ohci_hcd. In BB:root@OpenWrt:/# dmesg | grep ohci [ 0.543001] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.544195] ohci_hcd 0000:00:06.0: setting latency timer to 64 [ 0.544203] ohci_hcd 0000:00:06.0: OHCI Host Controller [ 0.544910] ohci_hcd 0000:00:06.0: new USB bus registered, assigned bus number 2 [ 0.545964] ohci_hcd 0000:00:06.0: irq 11, io mem 0xf0804000 [ 1.040235] usb 2-1: new full-speed USB device number 2 using ohci_hcd In CC (without USB_OHCI_HCD_PCI): root@OpenWrt:/# dmesg |grep ohci [ 0.884995] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.890242] ohci-platform: OHCI generic platform driver In CC (with USB_OHCI_HCD_PCI): [ 0.884343] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.885535] ohci-pci: OHCI PCI platform driver [ 0.892110] ohci-pci 0000:00:06.0: OHCI PCI host controller [ 0.893716] ohci-pci 0000:00:06.0: new USB bus registered, assigned bus number 2 [ 0.895858] ohci-pci 0000:00:06.0: irq 11, io mem 0xf0804000 [ 0.965726] ohci-platform: OHCI generic platform driver [ 1.400359] usb 2-1: new full-speed USB device number 2 using ohci-pci I fixed my problem creating a new kmod-ohci-pci that includes ohci-pci.ko. Probably, it should also be added to be built-in on every target that is pci-based and already include CONFIG_USB_OHCI_HCD build-in, like target/linux/x86/generic/config-default and others (which one?). However, it loads nicely as a module. I can submit the patch for the new kmod but I'm not sure about kernel dependencies like LINUX_3_x as ohci-pci.ko seems to be present only after 3.10. Looking the kernel commit log, it seems that ohci-pci wasn't the only one driver that was split from ohci. It was an effort for multi-plataform kernels on ARM. I guess every other one might need a kmod-ohci-xxx as well. So, the problem might affect every OHCI controller that where split. http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/usb/host/ohci-hcd.c In summary, no OHCI controller for CC on any target (except by some drivers that still lives inside ohci-hcd like octeon and other exotic platforms). BTW, CONFIG_USB_OHCI_ATH79, used for kmod-usb-ohci is deprecated at 3.14.x. "This option is deprecated now and the driver was removed, use USB_OHCI_HCD_PLATFORM instead." Regards, Em Thu Jan 22 2015 at 02:19:48, Luiz Angelo Daros de Luca < luizl...@gmail.com> escreveu: Hello, > > I'm running OpenWRT in Virtualbox. I have no problem with BB. However, > when testing trunk, I noticed that usb1.x functions simply does not work. > > For BB, in a clean install (+usbutils), I get: > https://downloads.openwrt.org/barrier_breaker/14.07/x86/ > generic/openwrt-x86-generic-combined-ext4.img.gz > > root@OpenWrt:/# lsusb > *Bus 002 Device 002: ID 80ee:0021 VirtualBox USB Tablet* > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > *Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub* > > root@OpenWrt:/# dmesg | egrep -i '(usb|hci)' > [ 0.063968] ACPI: bus type USB registered > [ 0.064573] usbcore: registered new interface driver usbfs > [ 0.065292] usbcore: registered new interface driver hub > [ 0.065990] usbcore: registered new device driver usb > [ 0.511884] ahci 0000:00:0d.0: version 3.0 > [ 0.513388] ahci: SSS flag set, parallel bus scan disabled > [ 0.514182] ahci 0000:00:0d.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps > 0x1 impl SATA mode > [ 0.515223] ahci 0000:00:0d.0: flags: 64bit ncq stag only ccc > [ 0.515945] ahci 0000:00:0d.0: setting latency timer to 64 > [ 0.516085] scsi0 : ahci > [ 0.521108] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver > [ 0.522068] ehci-pci: EHCI PCI platform driver > [ 0.523007] ehci-pci 0000:00:0b.0: setting latency timer to 64 > [ 0.523015] ehci-pci 0000:00:0b.0: EHCI Host Controller > [ 0.523673] ehci-pci 0000:00:0b.0: new USB bus registered, assigned bus > number 1 > [ 0.524738] ehci-pci 0000:00:0b.0: irq 10, io mem 0xf0840000 > [ 0.540886] ehci-pci 0000:00:0b.0: USB 2.0 started, EHCI 1.00 > *[ 0.541668] hub 1-0:1.0: USB hub found* > [ 0.542882] ehci-platform: EHCI generic platform driver > [ 0.543609] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver > [ 0.544824] ohci_hcd 0000:00:06.0: setting latency timer to 64 > [ 0.544831] ohci_hcd 0000:00:06.0: OHCI Host Controller > [ 0.545495] ohci_hcd 0000:00:06.0: new USB bus registered, assigned bus > number 2 > [ 0.546662] ohci_hcd 0000:00:06.0: irq 11, io mem 0xf0804000 > *[ 0.600350] hub 2-0:1.0: USB hub found* > [ 0.602055] uhci_hcd: USB Universal Host Controller Interface driver > [ 0.603133] usbcore: registered new interface driver usb-storage > [ 1.040233] usb 2-1: new full-speed USB device number 2 using ohci_hcd > > And for CC, in a clean install (+usbutils), I get: > https://downloads.openwrt.org/snapshots/trunk/x86/openwrt- > x86-generic-combined-ext4.img.gz > > root@OpenWrt:/# lsusb > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > root@OpenWrt:/# dmesg | egrep -i '(usb|hci)' > [ 0.207085] ACPI: bus type USB registered > [ 0.208234] usbcore: registered new interface driver usbfs > [ 0.210038] usbcore: registered new interface driver hub > [ 0.211447] usbcore: registered new device driver usb > [ 0.846969] ahci 0000:00:0d.0: version 3.0 > [ 0.850123] ahci 0000:00:0d.0: SSS flag set, parallel bus scan disabled > [ 0.851991] ahci 0000:00:0d.0: AHCI 0001.0100 32 slots 1 ports 3 Gbps > 0x1 impl SATA mode > [ 0.854051] ahci 0000:00:0d.0: flags: 64bit ncq stag only ccc > [ 0.855726] scsi0 : ahci > [ 0.865267] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver > [ 0.866641] ehci-pci: EHCI PCI platform driver > [ 0.868536] ehci-pci 0000:00:0b.0: EHCI Host Controller > [ 0.870011] ehci-pci 0000:00:0b.0: new USB bus registered, assigned bus > number 1 > [ 0.872088] ehci-pci 0000:00:0b.0: irq 10, io mem 0xf0806000 > [ 0.890021] ehci-pci 0000:00:0b.0: USB 2.0 started, EHCI 1.00 > *[ 0.891475] hub 1-0:1.0: USB hub found* > [ 0.910106] ehci-platform: EHCI generic platform driver > [ 0.911554] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver > [ 0.913104] ohci-platform: OHCI generic platform driver > [ 0.914517] uhci_hcd: USB Universal Host Controller Interface driver > [ 0.916619] usbcore: registered new interface driver usb-storage > > In CC, there is no "Linux Foundation 1.1 root hub". Only EHCI hub is > detected. ohci_hcd was expected to detect a new hub. If I disable usb2.0 in > virtualbox config, OpenWRT gets no USB support in CC. Virtual machine > configs are equal. > > kmod-usb-ohci is not installed by default in both system. However, both > systems seems to have some usb modules (including usb-ohci) built in > kernel. So, kmod-usb-ohci contains only control files (CC) or no files > (BB). Anyway, installing kmod-usb-ohci does not fix the problem. BTW, > shouldn't all "empty" packages for built-in modules be installed by > default? (most of <1k kmod-*.ipk) > > I have already tested CC installing all kmod packages with no change on > the USB problem. > > Checking my Ubuntu (with kernel newer than OpenWRT), I noticed that there > is a new ohci-pci in dmesg: > > ohci-pci: OHCI PCI platform driver > > Maybe it is USB_OHCI_HCD_PCI that is missing. > > Any tips? > > Regards, >
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