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2008-07-21usbfs: simplify the lookup-by-minor routinesAlan Stern
This patch (as1105) simplifies the lookup-by-minor-number code in usbfs. Instead of passing the minor number to the callback, which must then reconstruct the entire dev_t value, the patch passes the dev_t value directly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usbfs: send disconnect signals when device is unregisteredAlan Stern
USB device files are accessible in two ways: as files in usbfs and as character device nodes. The two paths are supposed to behave identically, but they don't. When the underlying USB device is unplugged, disconnect signals are sent to processes with open usbfs files (if they requested these signals) but not to processes with open device node files. This patch (as1104) fixes the bug by moving the disconnect-signalling code into a common subroutine which is called from both paths. Putting this subroutine in devio.c removes the only out-of-file reference to struct dev_state, and so the structure's declaration can be moved from usb.h into devio.c. Finally, the new subroutine performs one extra action: It kills all the outstanding async URBs. (I'd kill the outstanding synchronous URBs too, if there was any way to do it.) In the past this hasn't mattered much, because devices were unregistered from usbfs only when they were disconnected. But now the unregistration can also occur whenever devices are unbound from the usb_generic driver. At any rate, killing URBs when a device is unregistered from usbfs seems like a good thing to do. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: Force unbinding of drivers lacking reset_resume or other methodsAlan Stern
This patch (as1024) takes care of a FIXME issue: Drivers that don't have the necessary suspend, resume, reset_resume, pre_reset, or post_reset methods will be unbound and their interface reprobed when one of the unsupported events occurs. This is made slightly more difficult by the fact that bind operations won't work during a system sleep transition. So instead the code has to defer the operation until the transition ends. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: ohci-pnx4008: I2C cleanups and fixesJean Delvare
Various cleanups and fixes to the i2c code in ohci-pnx4008: * Delete empty isp1301_command. The i2c driver command implementation is optional, so there's no point in providing an empty implementation. * Give a name to isp1301_driver. I'm surprised that i2c-core accepted to register this driver at all. I've chosen "isp1301_pnx" as the name, because it's not a generic ISP1301 driver (much like the isp1301_omap driver.) We might want to make the name even more specific (but "isp1301_ohci_pnx4008" doesn't fit.) * The ISP1301 is definitely not a hardware monitoring device. * Fix a memory leak on failure in isp1301_attach. If i2c_attach_client fails, the client is not registered so isp1301_detach is never called and the i2c_client memory is lost. * Use strlcpy instead of strcpy. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Vitaly Wool <vitalywool@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: debug port converter does not accept more than 8 byte packetsAleksey Gorelov
USB debug port only supports 8 byte rx/tx packets. Although spec implies that "if a packet larger than eight bytes is received from the remote computer, the device must break the larger packet into eight-byte packets before sending the data to the Debug Port", the real PLX NET20DC device does not handle it right - data is corrupted on debug port end if serial interface sends >8 byte urbs. Patch below fixes the issue by limiting tx urb to 8 byte. Signed off by: Aleks Gorelov <dared1st@yahoo.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: fix disconnect bug in cdc-acmOliver Neukum
cdc-acm must give up secondary interfaces if the primary is disconnected and vice versa. This wasn't done correctly. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: fix usb serial pm counter decrement for disconnected interfacesOliver Neukum
usb serial decrements the pm counter even if an interface has been disconnected. If it was a logical disconnect the interface may belong already to another driver. This patch introduces a check for disconnected interfaces. Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: Stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: autosuspend for cdc-wdmOliver Neukum
this patch implements - suspend/resume - aggressive autosuspend for the cdc-wdm driver - pre/post_reset Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: additional power savings for cdc-acm devices that support remote wakeupOliver Neukum
this patch saves power for cdc-acm devices that support remote wakeup while the device is connected. - request needs_remote_wakeup when needed - delayed write while a device is autoresumed - the device is marked busy when appropriate Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: keyspan: Remove duplicate device entriesBen Collins
The 28xb, as documented in comments, has the same ID's as the 28x. Remove the duplicated ID's from the device tables, and expand the comment to document this. Signed-off-by: Ben Collins <ben.collins@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb: fix uninitialized variable warning in keyspan_pdaBenny Halevy
This fixes the compiler warning. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb: r8a66597-hcd: fix iinterval for Full/Low speed deviceYoshihiro Shimoda
fix interrupt transfer interval for Full/Low speed device. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb: r8a66597-hcd: fix interrupt triggerYoshihiro Shimoda
fix the problem that did not set IRQF_TRIGGER_ flag. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: fix usb_reset_device and usb_reset_composite_device(take 3)Ming Lei
This patch renames the existing usb_reset_device in hub.c to usb_reset_and_verify_device and renames the existing usb_reset_composite_device to usb_reset_device. Also the new usb_reset_and_verify_device does't need to be EXPORTED . The idea of the patch is that external interface driver should warn the other interfaces' driver of the same device before and after reseting the usb device. One interface driver shoud call _old_ usb_reset_composite_device instead of _old_ usb_reset_device since it can't assume the device contains only one interface. The _old_ usb_reset_composite_device is safe for single interface device also. we rename the two functions to make the change easily. This patch is under guideline from Alan Stern. Signed-off-by: Ming Lei <tom.leiming@gmail.com>
2008-07-21USB: usb-serial: fix a sparse warning about different signednessAndre Haupt
fix the following sparse warning: drivers/usb/serial/usb-serial.c:927:43: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/usb-serial.c:927:43: expected unsigned int *minor drivers/usb/serial/usb-serial.c:927:43: got int *<noident> CHECK drivers/usb/serial/generic.c Signed-off-by: Andre Haupt <andre@bitwigglers.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: isp1760: Support board-specific hardware configurationsNate Case
This adds support for hardware configurations that don't match the chip default register settings (e.g., 16-bit data bus, DACK and DREQ pulled up instead of down, analog overcurrent mode). These settings are passed in via the OF device tree. The PCI interface still assumes the same default values. Signed-off-by: Nate Case <ncase@xes-inc.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: fix comment of usb_set_configurationMing Lei
It is the usb interface driver probe() methods that can't call usb_set_configuration, not usb device driver. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: use standard SG iterator in the scatter-gather libraryAlan Stern
This patch (as1103) changes the iteration in the USB scatter-gather to use a standard SG iterator. Otherwise the iteration will fail if it encounters a chained SG list. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: remove interface parameter of usb_reset_composite_deviceMing Lei
From the current implementation of usb_reset_composite_device function, the iface parameter is no longer useful. This function doesn't do something special for the iface usb_interface,compared with other interfaces in the usb_device. So remove the parameter and fix the related caller. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: AccessRunner: avoid unnecessary memsetChristophe Jaillet
Remove an explicit memset(.., 0, ...) to a variable allocated with kzalloc (i.e. 'card_info' array of the structure 'instance'). Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: drivers/usb/host/isp1760-hcd.c: processor flags have type `unsigned long'Andrew Morton
Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: cdc-wdm cleanupOliver Neukum
- fixes an error with filling out control requests - increases grepability and error logging - fixes the short read code path Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: delete airprime driverGreg Kroah-Hartman
This driver is only for one device id, and the option driver should be used instead for it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: usbmon: use simple_read_from_buffer()Akinobu Mita
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: uhci: mark root_hub_hub_des[] as constMing Lei
mark this array as const because it is read-only Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: host: mark const variable tables as "const"Ming Lei
Mark the tables as const so that they end up in .rodata section and don't cacheline share with things that get written to. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB Gadget: documentation updateAlan Stern
This patch (as1102) clarifies two points in the USB Gadget kerneldoc: Request completion callbacks are always made with interrupts disabled; Device controllers may not support STALLing the status stage of a control transfer after the data stage is over. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb: irda: cleanup on ir-usb moduleFelipe Balbi
General cleanup on ir-usb module. Introduced a common header that could be used also on usb gadget framework. Lot's of cleanups and now using macros from the header file. Signed-off-by: Felipe Balbi <me@felipebalbi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: ehci-hcd unlink speedupsDavid Brownell
This patch fixes some performance bugs observed with some workloads when unlinking EHCI queue header (QH) descriptors from the async ring (control/bulk schedule). The mechanism intended to defer unlinking an empty QH (so there is no penalty in common cases where it's quickly reused) was not working as intended. Sometimes the unlink was scheduled: - too quickly ... which can be a *strong* negative effect, since that QH becomes unavailable for immediate re-use; - too slowly ... wasting DMA cycles, usually a minor issue except for increased bus contention and power usage; Plus there was an extreme case of "too slowly": a logical error in the IAA watchdog-timer conversion meant that sometimes the unlink never got scheduled. The fix replaces a simple counter with a timestamp derived from the controller's 8 KHz microframe counter, and adjusts the timer usage for some issues associated with HZ being less than 8K. (Based on a patch originally by Alan Stern, and good troubleshooting from Leonid.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Leonid <leonidv11@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb: hub: add check for unsupported bus topologyFelipe Balbi
We can't allow hubs on the 7th tier as they would allow devices on the 8th tier. Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: ohci_hcd hang: submit vs. rmmod racePete Zaitcev
If we do rmmod ohci_hcd while an application is doing something, the following may happen: - a control URB completes (in finish_urb) and the ohci's endpoint is set into ED_UNLINK in ed_deschedule - same URB is (re)submitted because of the open/close loop or other such application behaviour - rmmod sets the state to HC_STATE_QUESCING - finish_unlinks happens at next SOF; normally it would set ed into ED_IDLE and immediately call ed_schedule (since URB had extra TDs queued), which sets it into ED_OPER. But the check in ed_schedule makes it fail with -EAGAIN (which is ignored) - from now on we have a dead URB stuck; it cannot even be unlinked because the ed status is not ED_OPER, and thus start_ed_unlink is not invoked. This patch removes the check. In 2.6.25, all callers check for __ACTIVE bit before invoking ed_schedule, which is more appropriate. Alan Stern and David Brownell approved of this (cautiously). Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: make SA1111 OHCI driver SA11x0 specificEric Miao
As RMK pointed out, considering the fact that the _only_ platform with a PXA and SA1111 is the Lubbock, and that SA1111 DMA doesn't work there, (i.e. the SA1111 OHCI doesn't work there) the SA1111 OHCI driver should really be made SA11x0 specific. Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: missing usb_put_hcd to ohci-at91Pete Zaitcev
Looks like usb_put_hcd was missing. Also, make an always-zero function return void. Signed-off-by: Pete Zaitcev <zaitcev@yahoo.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: speedtch.c fix sparse shadowed variable warningHarvey Harrison
i is used only as a for-loop index no need to declare another. drivers/usb/atm/speedtch.c:832:7: warning: symbol 'i' shadows an earlier one drivers/usb/atm/speedtch.c:766:6: originally declared here Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: cp2101.c fix sparse signedness mismatch warningsHarvey Harrison
The get/set 2101_config helpers take an unsigned int rather than an int. It is safe to change these in each case and may even produce better code as it will be an unsigned divide rather than a signed divide in places. All other manipulation was setting/masking bits which will not be affected by the sign change. Fixes the following sparse warnings: drivers/usb/serial/cp2101.c:378:44: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:378:44: expected unsigned int *data drivers/usb/serial/cp2101.c:378:44: got int *<noident> drivers/usb/serial/cp2101.c:388:40: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:388:40: expected unsigned int *data drivers/usb/serial/cp2101.c:388:40: got int *<noident> drivers/usb/serial/cp2101.c:413:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:413:42: expected unsigned int *data drivers/usb/serial/cp2101.c:413:42: got int *<noident> drivers/usb/serial/cp2101.c:421:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:421:42: expected unsigned int *data drivers/usb/serial/cp2101.c:421:42: got int *<noident> drivers/usb/serial/cp2101.c:444:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:444:42: expected unsigned int *data drivers/usb/serial/cp2101.c:444:42: got int *<noident> drivers/usb/serial/cp2101.c:451:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:451:42: expected unsigned int *data drivers/usb/serial/cp2101.c:451:42: got int *<noident> drivers/usb/serial/cp2101.c:458:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:458:42: expected unsigned int *data drivers/usb/serial/cp2101.c:458:42: got int *<noident> drivers/usb/serial/cp2101.c:471:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:471:42: expected unsigned int *data drivers/usb/serial/cp2101.c:471:42: got int *<noident> drivers/usb/serial/cp2101.c:481:42: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:481:42: expected unsigned int *data drivers/usb/serial/cp2101.c:481:42: got int *<noident> drivers/usb/serial/cp2101.c:561:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:561:41: expected unsigned int *data drivers/usb/serial/cp2101.c:561:41: got int *<noident> drivers/usb/serial/cp2101.c:591:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:591:45: expected unsigned int *data drivers/usb/serial/cp2101.c:591:45: got int *<noident> drivers/usb/serial/cp2101.c:597:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:597:41: expected unsigned int *data drivers/usb/serial/cp2101.c:597:41: got int *<noident> drivers/usb/serial/cp2101.c:608:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:608:45: expected unsigned int *data drivers/usb/serial/cp2101.c:608:45: got int *<noident> drivers/usb/serial/cp2101.c:614:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:614:41: expected unsigned int *data drivers/usb/serial/cp2101.c:614:41: got int *<noident> drivers/usb/serial/cp2101.c:623:45: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:623:45: expected unsigned int *data drivers/usb/serial/cp2101.c:623:45: got int *<noident> drivers/usb/serial/cp2101.c:680:50: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:680:50: expected unsigned int *data drivers/usb/serial/cp2101.c:680:50: got int *<noident> drivers/usb/serial/cp2101.c:690:43: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:690:43: expected unsigned int *data drivers/usb/serial/cp2101.c:690:43: got int *<noident> drivers/usb/serial/cp2101.c:715:41: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/cp2101.c:715:41: expected unsigned int *data drivers/usb/serial/cp2101.c:715:41: got int *<noident> Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: digi_accelport.c trivial sparse lock annotationHarvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: ohci-ppc-of: use linux/of_platform.h instead of asmStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: sisusb: Push down the BKLAlan Cox
This is another case where the lock_kernel appears to be unneccessary and could be removed with a bit more investigative work Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: rio100: Push down the BKLAlan Cox
The BKL is actually probably not needed as the mutex seems sufficient. If so then a further patch to drop it would be a good followup. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: auerwald: Push down the BKL into the driverAlan Cox
Also fix the unknown ioctl return code Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: iowarrior: Push down BKLAlan Cox
I'm pretty sure the mutex is sufficient for all locking but will come back to that later if the USB folks don't beat me to it. For now get rid of the old BKL ioctl method and wrap the ioctl handler Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: usblcd: Push down BKL into driverAlan Cox
I'm pretty sure this can be eliminated however I couldn't prove (or find) what stopped the device vanishing mid IOCTL_GET_HARD_VERSION. Perhaps a USB wizard could double check that and see if the lock_kernel can go entirely. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: ftdi_usb: Eliminate ioctl and BKL ioctl useAlan Cox
ftdi has one ioctl, which is buggy and for debugging. Kill it off Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21USB: gadget: Push BKL down into driversAlan Cox
This keeps the gadget ioctl method wrapped but pushes the BKL down into the gadget code so we can use unlocked_ioctl(). Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb ethernet gadget: use composite gadget frameworkDavid Brownell
Building on the previous patches which took code from this driver and pakaged it in more-reusable network "function" components, this patch gets rid of the original code and uses those components instead. As seen with the other gadget driver conversions, the resulting code is much easier to understand and (presumably) work with. In this case that's especially true, since the Ethernet gadget had grown to handle three (!) different Ethernet-over-USB protocols. This modularization should make it much easier to add a fourth option for the newish CDC "Ethernet Emulation Model" (or EEM). Lightly tested, primarily at full speed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb gadget: new "CDC Composite" gadget driverDavid Brownell
This is a simple example of a composite gadget, combining two Communications Class Device (CDC) functions: ECM and ACM. This provides a clear example of how the composite gadget framework is intended to work. It's surprising that MS-Windows (or at least, XP and previous) won't "just work" with something this simple... One /proc/bus/usb/devices listing looks like: T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 46 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0525 ProdID=a4aa Rev= 3.01 S: Manufacturer=Linux 2.6.26-rc6-pnut with net2280 S: Product=CDC Composite Gadget C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr= 2mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=32ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Not all USB peripheral controller hardware can support this driver. All the highspeed-capable peripheral controllers with drivers now in the mainline kernel seem to support this, as does omap_udc. But many full speed controllers don't have enough endpoints, or (as with the PXA controllers) don't support altsettings. Lightly tested. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb ethernet gadget: split RNDIS functionDavid Brownell
This is a RNDIS function driver, extracted from the all-in-one Ethernet gadget driver. Lightly tested ... there seems to be a pre-existing problem when talking to Windows XP SP2, not quite sure what's up with that yet. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb ethernet gadget: split CDC Ethernet functionDavid Brownell
This is a "CDC Ethernet" (ECM) function driver, extracted from the all-in-one Ethernet gadget driver. This is a good example of how to implement interface altsettings. In fact it's currently the only such example in the gadget stack, pending addition of OBEX support. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb ethernet gadget: split CDC Subset functionDavid Brownell
This is a simple "CDC Subset" (and MCCI "SAFE") function driver, extracted from the all-in-one Ethernet gadget driver. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21usb ethernet gadget: split out network coreDavid Brownell
Abstract the peripheral side Ethernet-over-USB link layer code from the all-in-one Ethernet gadget driver into a component that can be called by various functions, so the various flavors can be split apart and selectively reused. A notable difference from the approach taken with the serial link layer code (beyond talking to NET not TTY) is that because of the initialization requirements, this only supports one network link. (And one set of Ethernet link addresses.) That is, each configuration may have only one instance of a network function. This doesn't change behavior; the current code has that same restriction. If you want multiple logical links, that can easily be done using network layer tools. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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