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2012-01-05usb: fix aliasing issue in EHCI interrupt codeVincent Palatin
The interrupt endpoint handling code stores the buffer pointer in the QH padding field. We need to make it the size of a pointer to avoid strict aliasing issue with the compiler. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BUG=chromium-os:24760 TEST=emerge-lumpy chromeos-u-boot ; emerge-tegra2_kaen chromeos-u-boot Change-Id: Iecbfa0610591d24452106b79de61abb033c36f2e Reviewed-on: https://gerrit.chromium.org/gerrit/13732 Commit-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
2012-01-04usb-ehci: Support interrupt transfers via periodic listPatrick Georgi
Interrupt transfers aren't meant to be used from the async list (the EHCI spec indicates trouble with low/full-speed intr on async). Build a periodic list instead, and provide an API to make use of it. Then, use that API from the existing interrupt transfer API. BUG=chrome-os-partner:5752 TEST=Use USB keyboard in u-boot (recovery mode) when later commits make use of this code Change-Id: I9bf0ef838af1076f8060c39bd942d95271cf0035 Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Reviewed-on: https://gerrit.chromium.org/gerrit/13489 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
2011-12-13USB: Add T30 USB supportTom Warren
BUG=chromium-os:23496 TEST=built Seaboard and Waluigi OK Signed-off-by: Tom Warren <twarren@nvidia.com> Change-Id: I52fcccc1627d1e9b6e0270e5ba9ab81c5d7fa9b7 Reviewed-on: https://gerrit.chromium.org/gerrit/12444
2011-12-06UPSTREAM: USB: Add usb_event_poll() to get keyboards working with EHCIMarek Vasut
Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Cc: Remy Bohmer <linux@bohmer.net> (cherry picked from u-boot-usb.git commit 62d5f9a8b9e9a395b7e8af3344a2b2e47157c8f9) BUG=chrome-os-partner:5752 TEST=on Lumpy, use USB keyboard to enter commands on U-Boot command line Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Change-Id: I6986ebda2191caf641444fca8909b253867e873b Reviewed-on: https://gerrit.chromium.org/gerrit/12510 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
2011-12-06ehci: speed up initializationVincent Palatin
According to EHCI specification v1.0, the controller should stabilize the power on a port at most 20 ms after the port power bit transition. So, we put this setting in the virtual descriptor corresponding field, (bPwrOn2PwrGood = 10 => 10 x 2ms = 20ms), this saves about 500ms at each controller initialization/enumeration. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BUG=chrome-os-partner:6344 TEST=check USB time stamp on Lumpy before and after the patch Change-Id: Ia09f62bdb6545387e5e7386ef9095abd53a7d192 Reviewed-on: https://gerrit.chromium.org/gerrit/12491 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org> Commit-Ready: Vincent Palatin <vpalatin@chromium.org>
2011-08-29Fix compiler warnings generated by gcc 4.6.Vadim Bendebury
The newer compiler version is more thorough in detecting code inconsistencies, and reports warnings in many cases when building u-boot for kaen and alex. This change modifies the code to get rid of the warnings. There supposed to be no logical changes, so no testing other than building the system is being done. The files not yet upstreamed are excluded and will be submitted separately. BUG=chromium-os:18862 TEST=manual . run the following commands emerge-tegra2_kaen chromeos-u-boot emerge-x86-alex chromeos-u-boot . observe them succeed Change-Id: I4c872d84352539d24a418ba910274d08d02d26a8 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: http://gerrit.chromium.org/gerrit/5706 Reviewed-by: Simon Glass <sjg@chromium.org>
2011-08-29Add support for SMSC95XX USB 2.0 10/100MBit Ethernet Adapter.Tom Wai-Hong Tam
The SMSC95XX is a USB hub with a built-in Ethernet adapter. This adds support for this, using the USB host network framework. The source is from a prevous commit: http://lists.denx.de/pipermail/u-boot/2011-June/094243.html And fix warnings of "Dereferencing type-punned pointer will break strict-aliasing rules", as: 351c351,352 < u32 addr_lo, addr_hi; --- > u32 addr_lo; > u16 addr_hi; 356,357c357,360 < addr_lo = cpu_to_le32(*((u32 *)eth->enetaddr)); < addr_hi = cpu_to_le16(*((u16 *)(eth->enetaddr + 4))); --- > memcpy(&addr_lo, eth->enetaddr, sizeof(u32)); > addr_lo = cpu_to_le32(addr_lo); > memcpy(&addr_hi, eth->enetaddr + 4, sizeof(u16)); > addr_hi = cpu_to_le16(addr_hi); BUG=none TEST=booted u-boot and detected a SMSC9500 USB Etherenet Adadpter. Change-Id: I5fc136933d9923e5e446eecbbb7aeb8e2ccc7077 Reviewed-on: http://gerrit.chromium.org/gerrit/5714 Tested-by: Tom Wai-Hong Tam <waihong@chromium.org> Reviewed-by: Rong Chang <rongchang@chromium.org>
2011-08-29eth: remove usb-ethernet devices before re-enumerating themVincent Palatin
Fix the crash when running several times usb_init() with a USB ethernet device plugged. BUG=chromium-os:15206 TEST=run several "usb start" commands and having inserted/removed all possible combinations of 0 to 3 USB Ethernet devices. Change-Id: I23109ad8774daeb07eeba5de615700fec643dfdb Reviewed-on: http://gerrit.chromium.org/gerrit/5026 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2011-08-29usb: add multiple controllers support for EHCIVincent Palatin
Add the ability to have several active EHCI controller on a system and implement it for Tegra EHCI controllers. BUG=chrome-os-partner:5043 TEST=boot an Aebl with USB key on USB3 port, boot a Kaen with USB key on USB1 port, boot a Kaen with USB key on USB3 port. Change-Id: Id37a9a4f92b986505fd6f8778d6f7964890d46b4 Reviewed-on: http://gerrit.chromium.org/gerrit/4981 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org>
2011-08-29usb: update API for multiple controllersVincent Palatin
Add the ability to have USB devices enumerated on several controllers BUG=chrome-os-partner:5043 TEST=Compile U-Boot Change-Id: If43d32d4dc90c15ba570e5b9f86641cbf60ce064 Reviewed-on: http://gerrit.chromium.org/gerrit/4951 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org>
2011-08-29Revert "ehci: enforce alignment constraints on buffers"Vincent Palatin
This reverts commit b95dbcd6aea80e7ad86c8355e1db410b5582515c. It is no longer needed since the .bss alignment issue has been fixed. BUG=chrome-os-partner:3914 TEST=Boot a Chromeos image from a USB key on Alex : "usb start ; fatload usb 1:c 3000000 syslinux/vmlinuz.a ; zboot 3000000" Change-Id: Iba3df10c1abdcbb44a474e60beac502d5dd0f6aa Reviewed-on: http://gerrit.chromium.org/gerrit/4099 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@google.com>
2011-08-29ehci: generic PCI supportVincent Palatin
Instead of hardcoding the PCI IDs on the USB controller, use the PCI class to detect them. Ensure the busmaster bit is properly set in the PCI configuration. BUG=chrome-os-partner:3914 TEST=Boot a Chromeos image from a USB key on Alex : "usb start ; fatload usb 1:c 3000000 syslinux/vmlinuz.a ; zboot 3000000" and launch a TFTP transfer using a USB-ethernet dongle. Change-Id: Id74bf23ce95a76d4d2c3be506d713bbef9734bd3 Reviewed-on: http://gerrit.chromium.org/gerrit/3657 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@google.com>
2011-08-29ehci: enforce alignment constraints on buffersVincent Palatin
Various control data structures used by the EHCI hardware such as QH and TD must be 32-byte aligned. When using the GCC attribute "aligned", the maximum alignment supported by the linker depends on the architecture. On x86, the linker only support 8-byte alignment. So we need to enforce alignment manually by allocating larger or aligned buffers. BUG=chrome-os-partner:3914 TEST=Boot a Chromeos image from a USB key on Alex : "usb start ; fatload usb 1:c 3000000 syslinux/vmlinuz.a ; zboot 3000000" and launch a TFTP transfer using a USB-ethernet dongle. Change-Id: I9c3e86f6ad04d18c3da1eb45926cec0e6d251461 Reviewed-on: http://gerrit.chromium.org/gerrit/3656 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@google.com>
2011-08-29ehci: Add 64-bit controller supportVincent Palatin
On EHCI controller with 64-bit address space support, we must initialize properly the high word for the PCI bus master accesses. BUG=chrome-os-partner:3914 TEST=Boot a Chromeos image from a USB key on Alex : "usb start ; fatload usb 1:c 3000000 syslinux/vmlinuz.a ; zboot 3000000" and launch a TFTP transfer using a USB-ethernet dongle. Change-Id: I61026276c27d82707469f7296deaffef4f5d7926 Reviewed-on: http://gerrit.chromium.org/gerrit/3655 Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@google.com>
2011-08-29Handle USB timeouts betterSimon Glass
After discussions on the U-Boot Mailing List it seems that this patch improves the ASIX network driver timeout issue. This is an interim fix since there is not time to look at it in detail now. BUG=chromium-os:17147 TEST=network boot and observe that timeouts seems less common (however, they still occur) Change-Id: I5847c04abbd2d15382df6ef45fe21214e13d1b60 Reviewed-on: http://gerrit.chromium.org/gerrit/3409 Tested-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anton Staaf <robotboy@chromium.org>
2011-08-29tegra2: Run-time assignment of USB port numbersSimon Glass
USB ports relied on CONFIG_TEGRA2_USBx macros to select the ordering. This change records the order that the ports are configured and uses that to select ports by number. This properly honors CONFIG_TEGRA2_USBx when not using an FDT. Also removed direct access to the USB peripheral address from the Tegra2 EHCI driver. BUG=chromium-os:11623 TEST=usb start; run usb_boot Change-Id: Ib906ec4483bcd95ff9564411f44dc0a2e48fff8c Reviewed-on: http://gerrit.chromium.org/gerrit/2537 Tested-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anton Staaf <robotboy@chromium.org> Reviewed-by: Tom Warren <twarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2011-08-29tegra2: Tidy up USB implementationSimon Glass
This tidied up the USB configuration a little, to ready it for run-time configuration. BUG=chromium-os:11623 TEST=Build and boot U-Boot, usb start, network boot Change-Id: Ifdd5790c727cd697553455b57b167cd8dc51a823 Reviewed-on: http://gerrit.chromium.org/gerrit/2346 Tested-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anton Staaf <robotboy@chromium.org>
2011-08-24usbeth: asix: Do a fast init if link already establishedSimon Glass
The Asix driver takes the link down during init() and then brings it back up. This commit changes this so that if a link has already been established successfully we simply check that the link is still good. This reduces the delay between successive network commands. TEST=bootp; tftp ... - see that delay is now shorter than before. Change-Id: I044e6d12f6c175a87ee3c93bf874b497f9379c3e BUG=chromium-os:14082 TEST=run U-boot; usb start; bootp; bootp See that second bootp happens quickly and link stays up. Change-Id: I79fdf4f099041ed0a077e8a833d66076c1b28402 Reviewed-on: http://gerrit.chromium.org/gerrit/200 Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Tested-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Warren <twarren@nvidia.com>
2011-08-24Tegra2: Add USB supportSimon Glass
This adds basic USB support for port 0. The other port is not supported by this CL. BUG=chromium-os:13875 TEST=Put USB stick in side port. Then: Tegra2 (SeaBoard) # ext2load usb 0:3 10000000 /boot/vmlinuz Loading file "/boot/vmlinuz" from usb device 0:3 (gpt3) 2745808 bytes read Tegra2 (SeaBoard) # Change-Id: I10f9228377ee7ed7817bb30bf665d69c5e74f239 Review URL: http://codereview.chromium.org/6896012
2011-06-25usb: convert to partial linkingMike Frysinger
Looks like this was missed during the conversion to partial linking. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-06-25ehci-pci: Fix PCI EHCI driver for 36-bitZhao Chenhui
Convert the PCI base address into a virtual address. Signed-off-by: Zhao Chenhui <b35336@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com>
2011-06-25musb: process control messages after roothub accepted itCliff Cai
When dealing with non-multipoint devices, if the software root hub code accepted the message, then we still need to process it normally. So only return quickly when the root hub skipped the message or is otherwise in an error state. Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-18AT91: change includes from asm/arch/io.h to asm/io.hReinhard Meyer
and remove the now unused asm/arch-at91/io.h Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-05-18AT91: fix related at91 driver filesReinhard Meyer
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-04-27IMX: MX31: Cleanup include files and drop nasty #ifdef in driversStefano Babic
As exception among the i.MX processors, the i.MX31 has headers without general names (mx31-regs.h, mx31.h instead of imx-regs.h and clock.h). This requires several nasty #ifdef in the drivers to include the correct header. The patch cleans up the driver and renames the header files as for the other i.MX processors. Signed-off-by: Stefano Babic <sbabic@denx.de>
2011-04-05Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxWolfgang Denk
Conflicts: drivers/usb/host/ehci-pci.c Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-04-04echi: add ULI1575 PCI IDZhao Chenhui
Add ULI1575 EHCI controller to the list of the supported devices. Signed-off-by: Zhao Chenhui <b35336@freescale.com> Acked-by: Remy Bohmer <linux@bohmer.net> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-04-02ehci-pci: Add PCI EHCI controllerTrübenbach, Ralf
This patch adds support for the PI7C9X442SL PCIe EHCI host controller from Pericom. Tested at P4080DS eval board from Freescale. Signed-off-by: Ralf Trübenbach <ralf.truebenbach@men.de> Cc: Remy Bohmer <linux@bohmer.net>
2011-04-02usb: musb: blackfin: check anomaly workarounds at runtime tooMike Frysinger
The anomaly workarounds we need for older silicon might break things if used on newer versions where the anomalies don't exist. So check the silicon rev at runtime too. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-02usb: musb: blackfin: make clkin configurableMike Frysinger
Not everyone has a 24MHz clkin to the USB, so let board porters override. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-03-27Coding Style cleanup: remove trailing empty linesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-02-19USB-RNDIS: Send RNDIS state on disconnectingVitaly Kuzmichev
Add waiting for receiving Ethernet gadget state on the Windows host side before dropping pullup, but keep it for debug. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-02-19USB: Add USB RNDIS gadget protocolVitaly Kuzmichev
Port USB gadget RNDIS protocol support from linux-2.6.26 (.27 gadget stack actually has composite drivers). Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-02-19USB-CDC: Move struct declaration before its useVitaly Kuzmichev
Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-02-19USB-CDC: Port struct net_device_statsVitaly Kuzmichev
Port struct net_device_stats and statistics collecting needed for RNDIS protocol. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-02-19USB-CDC: handle interrupt after dropped pullupVitaly Kuzmichev
Disconnecting USB gadget with pending interrupt may cause its wrong handling in the next time when interface will be started again (especially actual for RNDIS). This interrupt may force the gadget to queue unexpected response before setup stage. Despite the fact that such interrupt handled after dropped pullup also may add pending response, this will not bring to any issues due to usb_ep_disable (which clears the queue) called on gadget unregistering. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-02-19Add support for ASIX AX88772 USB 2.0 10/100Mbit Ethernet AdaptorSimon Glass
Driver originally written by NVIDIA Corporation, modified to handle odd-length packets. Signed-off-by: Simon Glass <sjg@chromium.org>
2011-02-19Add USB host ethernet adapter supportSimon Glass
This adds support for using USB Ethernet dongles in host mode. This is just the framework - drivers will come later. A new config option called CONFIG_USB_HOST_ETHER can be defined in board config files to switch this on. The was originally written by NVIDIA and was cleaned up for release by the Chromium authors. Signed-off-by: Simon Glass <sjg@chromium.org>
2011-02-19Fix EHCI usb submit timeout and unify with OHCISimon Glass
Changed both to use a common timeout for URB submission, since they were using different values and EHCI's was too short. Also fixed EHCI to actually check if urb submission succeeded, rather than silently continuing into the weeds. Change-Id: I7f71499ffaa05187d8e5618db2419e1606007b82 Signed-off-by: Simon Glass <sjg@chromium.org>
2011-01-19USB-CDC: Move MAC addresses setting into usb_eth_initVitaly Kuzmichev
This allows to change device and host MAC addresses without performing reset. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-01-19USB-CDC: Do not rename netdev after its registrationVitaly Kuzmichev
Calling eth_bind at usb_eth_init time causes renaming of the network device from 'usb_ether' to 'usb0'. Fixing this to keep the first name. Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com>
2011-01-19usb_ether: register usb ethernet gadget at each eth initLei Wen
Since the ether may not be the only one usb gadget would be used in the uboot, it is neccessary to do the register each time the eth begin to work to make usb gadget driver less confussed when we want to use two different usb gadget at the same time. Usb gadget driver could simple ignore the register operation, if it find the driver has been registered already. Signed-off-by: Lei Wen <leiwen@marvell.com>
2010-11-26usb: Remove usb_dev_init() from ehci-ppc4xx.cStefan Roese
Calling usb_dev_init() from within the EHCI host driver is wrong. The EHCI host driver should have no dependency/interconnection to the USB device driver. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Remy Bohmer <linux@bohmer.net>
2010-11-26usb: Clear CMD_RUN while issuing CMD_RESET in ehci_reset()Stefan Roese
This patch fixes a problem noticed on lwmon5 (PPC440EPx) using the common EHCI driver, when "usb reset" is issued multiple times. Upon the 2nd (and further) "usb reset" command, the command fails with the following messages: => usb reset (Re)start USB... USB: Register 1111 NbrPorts 1 USB EHCI 1.00 scanning bus for devices... 5 USB Device(s) found scanning bus for storage devices... 2 Storage Device(s) found => usb reset (Re)start USB... USB: EHCI fail to reset Error, couldn't init Lowlevel part This patch fixes this problem. Now "usb reset" can be called multiple times. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Remy Bohmer <linux@bohmer.net>
2010-11-26usb: Add WATCHDOG_RESET call to polling loopStefan Roese
This watchdog reset call is needed here, otherwise the lwmon5 board (PPC440EPx based) will reset upon the "usb reset" command. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Remy Bohmer <linux@bohmer.net>
2010-11-26usb: fix for USB_ST_STALLED status reporting in ehci_submit_async()Anatolij Gustschin
Checking the status field of the qTD token in the current code do not take into acount cases where endpoint stall (halted) bit is set together with XactErr status bit. As a result clearing stall on an endpoint won't be done if this status bit was also set. Check for halted bit and report USB_ST_STALLED status if the host controller also indicates endpoit stall condition. Signed-off-by: Anatolij Gustschin <agust@denx.de>
2010-11-17Switch from archive libraries to partial linkingSebastien Carlier
Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-10-27Coding Style cleanupWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-10-22ehci-hcd.c: fix hanging under higher loadWolfgang Denk
This patch solves a problem with USB hanging under higher load on a i.MX31 board. It falls into class of typical USB problems and fixes: if you don't understand the real cause, add a delay somewhere. The problem appeared after introduction of ELF relocation, which results in smaller code, which appears to run faster (probably because it fits better in the cache); turning off the instruction cache, adding debug printf()s and increasing the delay have all been found to make the problem go away. Moving the original "udelay(1)" up in the code to it's new place made the problem appear much less frequently. Increasing the delay to 2 microseconds then made the code run reliably in all (hour-long) tests. To be on the safe side, we set it to 5 microseconds here. Signed-off-by: Heiko schocher <hs@denx.de> Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Remy Bohmer <linux@bohmer.net> Cc: Stefano Babic <sbabic@denx.de>
2010-10-22usb: musb: constify a bitMike Frysinger
These ep and root hub structures need not be writable. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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