- 21 Jun, 2006 40 commits
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Micah Dowty authored
This patch removes the artificial 4088-byte limit that usbfs currently places on Control transfers. The USB spec does not specify a strict limit on the size of an entire control transfer. It does, however, state that the data stage "follows the same protocol rules as bulk transfers." (USB 2, 8.5.3) The level of support for large control transfers in real host controllers varies, but it's important to support at least 4K transfers. Windows enforces a maximum control transfer size of 4K, so there exists some hardware that requires a full 4096 byte data stage. Without this patch, we fall short of that by 8 bytes on architectures with a 4K page size, and it becomes impossible to support such hardware with a user-space driver. Since any limit placed on control transfers by usbfs would be arbitrary, this patch replaces the PAGE_SIZE limit with the same arbitrary limit used by bulk transfers. Signed-off-by:
Micah Dowty <micah@vmware.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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David Brownell authored
The swsusp.txt documentation harshes confusingly on USB, and this patch addresses the issue. It's harsh because it blames USB for some issues that are generic to all drivers -- especially those supporting removable media -- and it's confusing since it says that USB has the issue with "suspend" not just swsusp ... while in reality, USB doesn't have the issue when real system suspend states are used. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Acked-by:
Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Alan Stern authored
Some old Intel UHCI controllers have a bug that has shown up in a few systems (the PIIX3 "Neptune" chip set). Until now there has not been any simple way to work around the bug, but the lastest changes in uhci-hcd have made it easy. This patch (as684) adds the work-around. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as683) re-implements Full-Speed Bandwidth Reclamation (FSBR) properly. It keeps track of which endpoint queues have advanced, and when none have advanced for a sufficiently long time, FSBR is turned off. The next TD on each of the non-moving queues is modified to generate an interrupt on completion, so that FSBR can be re-enabled as soon as the hardware starts to make some progress. Signed-off-by:
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Alan Stern authored
This patch (as682) gets rid of the TD-removal list in uhci-hcd. It is no longer needed because now TDs are not freed until we know the hardware isn't using them. It also simplifies the code for adding and removing TDs to/from URBs. Signed-off-by:
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Alan Stern authored
This patch (as681) moves some code for cleaning up after unlinked URBs out of the general completion pathway into the unlinking pathway. Signed-off-by:
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Alan Stern authored
This patch (as680) frees non-isochronous TDs as they are used, rather than all at once when an URB is complete. Although not a terribly important change in itself, it opens the door to a later enhancement that will reduce storage requirements by allocating only a limited number of TDs at any time for each endpoint queue. Signed-off-by:
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Alan Stern authored
This patch (as679) combines the result routine for Control URBs with the routine for Bulk/Interrupt URBs. Along the way I eliminated the debugging printouts for Control transfers unless the debugging level is set higher than 1. I also eliminated a long-unused (#ifdef'ed-out) section that works around some buggy old APC BackUPS devices. Signed-off-by:
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Alan Stern authored
It seems to be relatively common for USB keyboards and mice to dislike being polled for reports. Since there's no need to poll a keyboard or a mouse, this patch (as685) automatically sets the HID_QUIRK_NOGET flag for devices that advertise themselves as either sort of device with boot protocol support. This won't cure all the problems since some devices don't support the boot protocol, but it's simple and easy and it should fix quite a few problems. Signed-off-by:
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Bart Massey authored
[PATCH] USB HID/HIDBP, INPUT DRIVERS: fix various usb/input/hid-input.c bugs that make Apple Mighty Mouse work poorly Transposed lines of code in drivers/usb/input/hid-input.c causes the capability bits for a new HID device to be set before quirks are applied at configuration time. When an HID event is then sent up to the input layer, it may then be discarded as irrelevant because the wrong capability bit is set. Further, the quirks for the Apple Mighty Mouse are not quite right: the horizontal scrolling needs its axis reversed, and the left and center buttons are transposed. Also, the mouse is labeled in the kernel with its earlier name (I think) of Apple PowerMouse. Steps to reproduce problem: Plug in an Apple Mighty Mouse. Note that horizontal scrolling doesn't work at all, and in fact doesn't generate any input events on /dev/input/eventN. Note also that pushing the middle button performs the right button action, and vice versa. Once you have the horizontal scrolling working, note that it is backward WRT both to vertical scrolling and to common sense. This patch maybe should be broken up, as it does address two problems. The transposed code in hidinput_configure_usage() probably creates bugs beyond just the Mighty Mouse. The rest of the patch renames POWERMOUSE to MIGHTYMOUSE everywhere (which I *believe* is correct), fixes the MIGHTYMOUSE quirk to swap the center and right mouse buttons, and adds a new quirk HID_QUIRK_INVERT_HWHEEL also assigned to the MIGHTYMOUSE with code in hidinput_hid_event() to implement it. Signed-off-by:
Bart Massey <bart@cs.pdx.edu> Signed-off-by:
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Alan Stern authored
This patch (as676) fixes a small bug in uhci-hcd's enqueue routine. When an URB is unlinked or gets an error and the completion handler queues another URB for the same endpoint, the queue shouldn't be allowed to start up again until the handler returns. Not even if the new URB is the only one on its queue. Signed-off-by:
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Alan Stern authored
This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by:
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Alan Stern authored
The net2280 board has an annoying habit of surviving soft reboots with interrupts enabled. This patch (as674) adds a shutdown routine to the driver so that the board can be put in a quiescent state. Signed-off-by:
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Daniel Drake authored
Unfortunately it looks like the transport entry for this subdriver was merged into the protocol section, making this driver unusable :( Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
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Daniel Drake authored
After some further testing with my flash device I realised that our current probe doesn't always work (e.g. when no media is inserted). Now that Peter Chubb's patch has simplified the detection of 99% of the HP CD writers out there, we have a much smaller range of hardware to work with on the shared device ID, so it should be possible to try some of the previous probe options again: we just need to find another tester with a USBAT2-based HP CD writer. This patch hardcodes the flash detection until someone comes along with one of these obscure CD drives. Note that these devices are extremely rare, so even if we can't ever find a decent probe method, at least we will be supporting almost all of the USBAT-based hardware out there. Signed-off-by:
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Peter Chubb authored
Use USB vendor and product IDs to determine whether the attached device is a CDROM or a Flash device. Daniel Drake says that the *same* vendor and product IDs for non-HP vendor ID could be either flash or cdrom, so try to probe for them. Signed-off-by:
Peter Chubb <peterc@gelato.unsw.edu.au> Signed-off-by:
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Peter Chubb authored
I've worked out what's going wrong. The scsi layer is now much more likely to pass down scatterlists instead of plain buffers. So you have to make sure that they're handled correctly. In one of the changes along the way, usbat_write_block and friends stopped obeying the srb->use_sg flag. Anyway, with the appended patch, and the one I'm putting in the next email, it all seems to work for the HP cd4e. Of course, someone's going to have to test it with the flash drives as well.... This patch teaches the usbat_{read,write}_block functions to obey the use_sg flag in the scsi-request. Signed-off-by: -
Sean Young authored
Make inputs pollable using sysfs_notify and add support for the Phidget InterfaceKit 0/16/16. Various cleanups. Signed-off-by:
Sean Young <sean@mess.org> Signed-off-by:
Daniel Saakes <daniel@saakes.net> Signed-off-by:
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Duncan Sands authored
We #include <linux/netdevice.h> only because <linux/etherdevice.h> needed it, but didn't #include it itself. But that's been fixed now. Signed-off-by:
Duncan Sands <baldrick@free.fr> Signed-off-by:
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Duncan Sands authored
Remove pointless inline. Signed-off-by:
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Pete Zaitcev authored
Remove the check for NULL which makes no sense. Suggested by Al. Signed-off-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Alan Stern authored
Some hubs claim not to support port-power switching, and right now the hub driver believes them and does not enable power to their ports. However it turns out that even though they don't actually switch power, they do ignore all events on a port until told to turn on the power! This problem has been reported by several users. This revised patch (as672b) makes the hub driver always try to turn on port power to all hubs, regardless of what the hub descriptor says. It also adds a comment explaining the need for this. Signed-off-by:
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Nicolas Boichat authored
Add support for MacBook touchpad in appletouch driver. Thanks to Alex Harper for the informations. Use u16 instead of int16_t in atp_is_geyser* functions. Acked-by:
Johannes Berg <johannes@sipsolutions.net> Acked-by:
Stelian Pop <stelian@popies.net> Signed-off-by:
Nicolas Boichat <nicolas@boichat.ch> Signed-off-by:
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Guennadi Liakhovetski authored
Prevent sending further output to a USB-serial console after the dongle is disconnected, take care not to leak kref. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Paul Fulghum authored
Prevent ENODEV on a /dev/ttyUSBx, used as a USB-serial console. From: Paul Fulghum <paulkf@microgate.com> Signed-off-by:
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Guennadi Liakhovetski authored
Prevent NULL dereference when used as a USB-serial console. Signed-off-by:
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Paul Fulghum authored
Append Carriage-Returns after Line-Feeds, analogous to the serial driver. From: Paul Fulghum <paulkf@microgate.com> Signed-off-by:
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Kumar Gala authored
In some systems we may have both a platform EHCI controller and PCI EHCI controller. Previously we couldn't build the EHCI support as a module due to conflicting module_init() calls in the code. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Adrian Bunk authored
This patch contains the following possible cleanups: - make needlessly global functions static - function and struct declarations belong into header files - make SiS_VCLKData const - #if 0 the following unused global functions: - sisusb.c: sisusb_writew() - sisusb.c: sisusb_readw() - sisusb_init.c: SiSUSB_GetModeID() Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Arjan van de Ven authored
From: Arjan van de Ven <arjan@infradead.org> Convert the semaphores-used-as-mutex to mutexes in the sisusb video driver; this required manual checking due to the "return as locked" stuff in this driver, but the ->lock semaphore is still used as mutex in the end. Signed-off-by:
Arjan van de Ven <arjan@infradead.org> Cc: Thomas Winischhofer <winischhofer.net> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Eduard Warkentin authored
Add support for detection and dworking with a ASIX 88178 based USB-Gigabit adaptor. With the patch, it is detected and handled correctly by the asix module. Signed-off-by:
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David Brownell authored
This includes an MTU fixup which could affect larger packets with newer Zaurii, described as http://bugzilla.kernel.org/show_bug.cgi?id=6286; plus minor whitespace cleanup. Signed-off-by:
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Oliver Neukum authored
this fixes the "duplicated text" bug. There's a modem that cannot cope with large transfers and more than one urb in flight. This patch adds a special case to the driver. Signed-off-by:
Oliver Neukum <oliver@neukum.name> Signed-off-by:
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Henk Vergonet authored
Keys on Yealink based phones will not function properly when using the generic HID driver. This patch prevents the generic HID code from grabbing the device before the regular yealink driver can get a grip on it. Signed-off-by:
Henk Vergonet <Henk.Vergonet@gmail.com> Signed-off-by:
Vojtech Pavlik <vojtech@suse.cz> Signed-off-by:
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Paul Serice authored
From: Paul Serice <paul@serice.net> The workaround in commit f7201c3d broke. The work around requires memory for DMA transfers for some NVidia EHCI controllers to be below 2GB, but recent changes have caused some DMA memory to be allocated before the DMA mask is set. Signed-off-by:
Paul Serice <paul@serice.net> Signed-off-by:
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Rene Herman authored
During the recent "isa drivers using platform devices" discussion it was pointed out that (ALSA) ISA drivers ran into the problem of not having the option to fail driver load (device registration rather) upon not finding their hardware due to a probe() error not being passed up through the driver model. In the course of that, I suggested a seperate ISA bus might be best; Russell King agreed and suggested this bus could use the .match() method for the actual device discovery. The attached does this. For this old non (generically) discoverable ISA hardware only the driver itself can do discovery so as a difference with the platform_bus, this isa_bus also distributes match() up to the driver. As another difference: these devices only exist in the driver model due to the driver creating them because it might want to drive them, meaning that all device creation has been made internal as well. The usage model this provides is nice, and has been acked from the ALSA side by Takashi Iwai and Jaroslav Kysela. The ALSA driver module_init's now (for oldisa-only drivers) become: static int __init alsa_card_foo_init(void) { return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS); } static void __exit alsa_card_foo_exit(void) { isa_unregister_driver(&snd_foo_isa_driver); } Quite like the other bus models therefore. This removes a lot of duplicated init code from the ALSA ISA drivers. The passed in isa_driver struct is the regular driver struct embedding a struct device_driver, the normal probe/remove/shutdown/suspend/resume callbacks, and as indicated that .match callback. The "SNDRV_CARDS" you see being passed in is a "unsigned int ndev" parameter, indicating how many devices to create and call our methods with. The platform_driver callbacks are called with a platform_device param; the isa_driver callbacks are being called with a "struct device *dev, unsigned int id" pair directly -- with the device creation completely internal to the bus it's much cleaner to not leak isa_dev's by passing them in at all. The id is the only thing we ever want other then the struct device * anyways, and it makes for nicer code in the callbacks as well. With this additional .match() callback ISA drivers have all options. If ALSA would want to keep the old non-load behaviour, it could stick all of the old .probe in .match, which would only keep them registered after everything was found to be present and accounted for. If it wanted the behaviour of always loading as it inadvertently did for a bit after the changeover to platform devices, it could just not provide a .match() and do everything in .probe() as before. If it, as Takashi Iwai already suggested earlier as a way of following the model from saner buses more closely, wants to load when a later bind could conceivably succeed, it could use .match() for the prerequisites (such as checking the user wants the card enabled and that port/irq/dma values have been passed in) and .probe() for everything else. This is the nicest model. To the code... This exports only two functions; isa_{,un}register_driver(). isa_register_driver() register's the struct device_driver, and then loops over the passed in ndev creating devices and registering them. This causes the bus match method to be called for them, which is: int isa_bus_match(struct device *dev, struct device_driver *driver) { struct isa_driver *isa_driver = to_isa_driver(driver); if (dev->platform_data == isa_driver) { if (!isa_driver->match || isa_driver->match(dev, to_isa_dev(dev)->id)) return 1; dev->platform_data = NULL; } return 0; } The first thing this does is check if this device is in fact one of this driver's devices by seeing if the device's platform_data pointer is set to this driver. Platform devices compare strings, but we don't need to do that with everything being internal, so isa_register_driver() abuses dev->platform_data as a isa_driver pointer which we can then check here. I believe platform_data is available for this, but if rather not, moving the isa_driver pointer to the private struct isa_dev is ofcourse fine as well. Then, if the the driver did not provide a .match, it matches. If it did, the driver match() method is called to determine a match. If it did _not_ match, dev->platform_data is reset to indicate this to isa_register_driver which can then unregister the device again. If during all this, there's any error, or no devices matched at all everything is backed out again and the error, or -ENODEV, is returned. isa_unregister_driver() just unregisters the matched devices and the driver itself. More global points/questions... - I'm introducing include/linux/isa.h. It was available but is ofcourse a somewhat generic name. Moving more isa stuff over to it in time is ofcourse fine, so can I have it please? :) - I'm using device_initcall() and added the isa.o (dependent on CONFIG_ISA) after the base driver model things in the Makefile. Will this do, or I really need to stick it in drivers/base/init.c, inside #ifdef CONFIG_ISA? It's working fine. Lastly -- I also looked, a bit, into integrating with PnP. "Old ISA" could be another pnp_protocol, but this does not seem to be a good match, largely due to the same reason platform_devices weren't -- the devices do not have a life of their own outside the driver, meaning the pnp_protocol {get,set}_resources callbacks would need to callback into driver -- which again means you first need to _have_ that driver. Even if there's clean way around that, you only end up inventing fake but valid-form PnP IDs and generally catering to the PnP layer without any practical advantages over this very simple isa_bus. The thing I also suggested earlier about the user echoing values into /sys to set up the hardware from userspace first is... well, cute, but a horrible idea from a user standpoint. Comments ofcourse appreciated. Hope it's okay. As said, the usage model is nice at least. Signed-off-by:Rene Herman <rene.herman@keyaccess.nl>
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Alan Stern authored
This patch (as721) makes dev_info and related macros print the device's bus name if the device doesn't have a driver, instead of printing just a blank. If the device isn't on a bus either... well, then it does leave a blank space. But it will be easier for someone else to change if they want. Cc: Matthew Wilcox <matthew@wil.cx> Signed-off-by:
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Greg Kroah-Hartman authored
We need to create the "compatible" symlinks that class_devices used to create when they were in the class directories so that userspace does not know anything changed at all. Yeah, we have a lot of symlinks now, but we should be able to get rid of them in a year or two... (wishful thinking...) Signed-off-by: -
Kay Sievers authored
Like the SUBSYTEM= key we find in the environment of the uevent, this creates a generic "subsystem" link in sysfs for every device. Userspace usually doesn't care at all if its a "class" or a "bus" device. This provides an unified way to determine the subsytem of a device, regardless of the way the driver core has created it. Signed-off-by:
Kay Sievers <kay.sievers@suse.de> Signed-off-by:
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Greg Kroah-Hartman authored
This is the first step in moving class_device to being replaced by struct device. It allows struct device to export a dev_t and makes it easy to dynamically create and destroy struct device as long as they are associated with a specific class. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by:
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