- 07 Feb, 2007 40 commits
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Oliver Neukum authored
I was sitting in a train threatened to be blocked by ice. I took this as a hint to do some more boring work for the common good. Here's a bit more for coding style. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Oliver Neukum authored
This patch (as844) makes some trivial whitespace fixes to a few files in usbcore. Oliver did most of the work and Alan added some tidying up. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
According to the Bulk-Only spec, usb-storage is supposed to use the _first_ bulk-in and bulk-out endpoints it finds, not the _last_. And while we're at it, we ought to test the direction of the interrupt endpoint as well. This patch (as842) makes both changes. Signed-off-by:
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Alan Stern authored
Now that port status change notifications are interrupt-driven, ehci-hcd needs to tell usbcore when a remote-wakeup resume operation is finished -- we can no longer rely on the core to poll and find out. This patch (as843) uses the root-hub status timer to force a poll after the resume is complete. The patch also changes the test for detecting when the TDRSMDN resume period has expired. It's necessary to use time_after_eq() instead of time_after(), since the polling is triggered precisely by a timer. The same change is made for TDRSTR reset expiration, for consistency. Signed-off-by:
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Marcelo Tosatti authored
Switch ehci-hcd to use the new polling scheme, which reports root hub status changes via the interrupt handler, in an asynchronous fashion. Doing so disables polling for status changes (whose handler is rh_timer_func). Tested on a Geode GX machine, which is now capable of running at =~ 5 timer interrupts per second (in the -rt tree), resulting in significant power savings. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
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Oliver Neukum authored
this implements autosuspend for usb printers. It compiles and is tested. Signed-off-by:
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Jeremy Roberson authored
Added a kernel module (gtco) to the USB Input subsystem. This kernel module adds support for all GTCO CalComp USB InterWrite School products. Signed-off-by:
Jeremy A. Roberson <jroberson@gtcocalcomp.com> Signed-off-by:
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Kevin Lloyd authored
This patch ensures that the device is turned on when inserted into the system. It also adds more VID/PIDs and matches the N_OUT_URB with the airprime driver. Signed-off-by:
Kevin Lloyd <linux@sierrawireless.com> Signed-off-by:
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Hvard Skinnemoen authored
Define DEV_CONFIG_CDC when compiling for HUSB2DEV. From: Hvard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Hvard Skinnemoen authored
This identifies the driver for the Atmel HUSB2 Device Controller, as integrated into the first AVR32 chip, the AT32AP700. From: Hvard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by:
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Alan Stern authored
This patch (as837) fixes several mistakes in the AIO interface of the gadgetfs driver: The ki_retry method is not supposed to do a put on the kiocb. The extra call to aio_put_req() causes memory corruption. (Note: This call was removed before, by patch as691, and then mysteriously re-introduced later.) Even if a read transfer is cancelled, we can and should send to the user all the data that did manage to get transferred. Testing for AIO cancellation in the I/O completion handler is both racy and (now) unnecessary. aio_complete() does its own checking, in a safe manner. Signed-off-by:
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David Brownell authored
Resolve an initizlization issue that could come up if the userspace driver wrote invalid descriptors to a dual-speed device. Signed-off-by:
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David Brownell authored
This resolves a race in gadgetfs associated with changing device/ep0 when processing control requests. The fix is to change that state earlier, when the control response is issued, so there's no window in which userspace could see the wrong state; and enlarge the scope of the spinlock during the ep0 request completion handler. Signed-off-by:
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David Brownell authored
This simplifies event reading by eliminating arithmetic and being more direct/obvious, and tweaks some debug messages slightly. The math elimination will change timings, sometimes enough to allow a race to appear. Signed-off-by:
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David Brownell authored
Minor gadgetfs cleanups: - EP0 state constants become consistently STATE_DEV_* rather than sometimes omitting the "DEV_"; STATE_EP_* were already consistent. - Comment that ep0 state is protected by the spinlock, and update code that was neglecting that rule. None of this is expected to change behavior. Signed-off-by:
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Oliver Neukum authored
- fix an error code returned if a device has been disconnected Signed-off-by:
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Oliver Neukum authored
- take BKL before looking up a driver to associate with a device to make sure the module is not unloaded after looking up but before association & bumping module count Signed-off-by:
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Oliver Neukum authored
- introduce a spinlock for serial_table to eliminate the window between looking up a device and getting a reference - delay inscription of a new device into serial_table until it is fully initialised - make sure disconnect() kills all URBs to avoid leckage across a soft unbind Signed-off-by:
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Rainer Weikusat authored
At least the Keyspan USA-19HS USB-to-serial converter supports two different configurations, one where the input endpoints have interrupt transfer type and one where they are bulk endpoints. The default UHCI configuration uses the interrupt input endpoints. The keyspan driver, OTOH, assumes that the device has only bulk endpoints (all URBs are initialized by calling usb_fill_bulk_urb in keyspan.c/ keyspan_setup_urb). This causes the interval field of the input URBs to have a value of zero instead of one, which 'accidentally' worked with Linux at least up to 2.6.17.11 but stopped to with 2.6.18, which changed the UHCI support code handling URBs for interrupt endpoints. The patch below modifies to driver to initialize its input URBs either as interrupt or as bulk URBs, depending on the transfertype contained in the associated endpoint descriptor (only tested with the default configuration) enabling the driver to again receive data from the serial converter. Greg K-H reworked the patch. Signed-off-by:
Rainer Weikusat <rweikusat@sncag.com> Signed-off-by:
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Oliver Neukum authored
The whole approach is simply wrong. Forking a thread means that - errors are ignored - locking is ignored Doing this correctly would require major surgery for questionable benefit. Signed-off-by:
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David Brownell authored
This updates the AT91 UDC driver's handling of wakeup events: - Fix a bug in the original scheme, which was never updated after the {enable,disable}_irq_wake() semantics were updated to address refcounting issues (i.e. behave for shared irqs). - Couple handling of both type of wakeup events, to be more direct. The controller can be source of wakeup events for cases like bus reset and USB resume. On some boards, VBUS sensing is also IRQ driven. Signed-off-by: -
Alan Stern authored
This patch (as710) adds a sysfs class-device attribute file named "companion" for EHCI controllers. The file contains a list of port numbers that are dedicated to the companion controller; by writing a port number to the file the user can force a high-speed device attached directly to the computer to run at full speed. (As far as I know it is not possible to do this for a device attached to an external hub.) A port is removed from the file by writing the negative of its port number. Several users have asked for this facility and it seems like a useful thing to have. Every now and then one runs across a device which behaves much better at full speed than at high speed. Signed-off-by:
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Alan Stern authored
This patch (as709) changes the way ehci-hcd presents port status values for ports owned by the companion controller. It no longer hides the information; in particular, it allows the core to see the disconnect event that occurs when a full- or low-speed device is switched over to the companion. This is required for the next patch in this series. Signed-off-by:
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Alan Stern authored
This patch (as708) introduces a local variable to hold the port status-register address in ehci-hub.c. There's not much improvement in the object code, but it sure is a lot easier to read. Signed-off-by:
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Alan Stern authored
This patch (as841) removes from usbcore a couple of support routines meant to help with bandwidth allocation. With the changes to uhci-hcd in the previous patch, these routines are no longer used anywhere. Also removed is the CONFIG_USB_BANDWIDTH option; it no longer does anything and is no longer needed since the HCDs now handle bandwidth issues correctly. Signed-off-by:
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Alan Stern authored
This patch (as840) fixes the bandwidth allocation mechanism in uhci-hcd. It has never worked correctly. Signed-off-by:
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Geoff Levand authored
USB OHCI driver bus glue for the PS3 game console. Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Benjamin Herrenschmidt authored
Restructure the ohci_hcd_mod_init error handling code in to better support the multiple platform drivers. This does not change the functionality. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Geoff Levand authored
Add the USB HID quirk HID_QUIRK_SONY_PS3_CONTROLLER. This sends an HID_REQ_GET_REPORT to the the PS3 controller to put the device into 'operational mode'. Signed-off-by:
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Geoff Levand authored
USB EHCI driver bus glue for the PS3 game console. Signed-off-by:
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Oliver Neukum authored
this implements enough ethtool support to make NetworkManager happy. Signed-off-by:
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Oliver Neukum authored
- implements suspend when the network interface is down - fixes a typo in comments - adds debugging output for power management - fixes a compiler warning Signed-off-by:
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Phil Endecott authored
Gadgetfs had a mode in which endpoint descriptors were written by the user program before connection. This mode had some bugs, and hasn't seen much (if any) use. This patch removes that mode, leaving the mode of operation where the user program waits for endpoint 0 to report a SET_CONFIGURATION, and only then configures the endpoints. From: "Phil Endecott" <spam_from_usb_devel@chezphil.org> Signed-off-by:
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David Brownell authored
Remove some whitespace bugs in gadgetfs (mostly from someone's patch updating the AIO support). Signed-off-by:
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Marc Pignat authored
The attached patch fixes the unbalanced calls to enable_irq_wake() and disable_irq_wake() in the AT91 USB Host driver. It should resolve these kernel messages: Unbalanced IRQ x wake disable BUG: warning at kernel/irq/manage.c:167/set_irq_wake() (The original code was debugged before a bug in the genirq wakeup irq logic was fixed by adding the IRQ wake enable/disable refcounting. Not all code yet uses the bugfixed model.) Signed-off-by:
Andrew Victor <andrew@sanpeople.com> Signed-off-by:
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Alan Stern authored
This patch (as835) removes from usb-storage the code which sets all devices to a SCSI level of at least SCSI-2. The original reasons for doing this no longer apply, and in fact it prevents certain kinds of ATA pass-thru commands from being used. The patch also marks CB and CBI devices that are SCSI-0 (legacy SCSI) as being single-LUN, since the combined SCSI-over-USB transport protocol has no way to convey LUN information to these devices. Signed-off-by:
Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by:
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Alan Stern authored
Isochronous queues don't need a dummy TD because the Queue Header isn't managed by the hardware. This patch (as836) removes the unnecessary dummy TDs. The patch also fixes a long-standing typo in a comment (a "don't" was missing -- potentially very confusing!). Signed-off-by:
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Alan Stern authored
This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by:
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Oliver Neukum authored
I overlooked one. Setting the flag and killing the URBs must be under the lock so that no URB is submitted after usb_kill_urb() Signed-off-by:
Oliver Neukum <oliver@neukum.org> Signed-off-by:
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Pete Zaitcev authored
This patch adds a new, "binary" API in addition to the old, text API usbmon had before. The new API allows for less CPU use, and it allows to capture all data from a packet where old API only captured 32 bytes at most. There are some limitations and conditions to this, e.g. in case someone constructs a URB with 1GB of data, it's not likely to be captured, because even the huge buffers of the new reader are finite. Nonetheless, I expect this new capability to capture all data for all real life scenarios. The downside is, a special user mode application is required where cat(1) worked before. I have sample code at http://people.redhat.com/zaitcev/linux/ and Paolo Abeni is working on patching libpcap. This patch was initially written by Paolo and later I tweaked it, and we had a little back-and-forth. So this is a jointly authored patch, but I am submitting this I am responsible for the bugs. Signed-off-by:
Paolo Abeni <paolo.abeni@email.it> Signed-off-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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