- 21 Jun, 2006 40 commits
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Alan Stern authored
This patch (as700) modifies the hub driver to take advantage of the new usb_reset_composite_device API. The existing code had special-case calls stuck into usb_reset_device, just before and after the reset. With the new version there's no need for special-case stuff; it all happens naturally in the form of pre_reset and post_reset notifications. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Alan Stern authored
This patch (as699) adds usb_reset_composite_device(), a routine for sending a USB port reset to a device with multiple interfaces owned by different drivers. Drivers are notified about impending and completed resets through two new methods in the usb_driver structure. The patch modifieds the usbfs ioctl code to make it use the new routine instead of usb_reset_device(). Follow-up patches will modify the hub, usb-storage, and usbhid drivers so they can utilize this new API. Signed-off-by:
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David Brownell authored
Earlier work splitting the "usbnet" driver out into a core plus driver modules was missing a blacklist entry for the Olympus R-1000; it must not use the CDC Ethernet driver, only the "zaurus" support works with it. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Eric Sesterhenn authored
From: Eric Sesterhenn <snakebyte@gmx.de> This fixes coverity Bug #390. With the following code ret = ep->branch = balance(isp116x, ep->period, ep->load); if (ret < 0) goto fail; the problem is that ret and balance are of the type int, and ep->branch is u16. so the int balance() returns gets reduced to u16 and then converted to an int again, which removes the sign. Maybe the following little c program can explain it better:
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Jeremy Fitzhardinge authored
Recognize the Sierra Wireless MC5720. Signed-off-by:
Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Stuart MacDonald authored
Attached patch fixes spurious errors during firmware load. Signed-off-by:
Stuart MacDonald <stuartm@connecttech.com> Signed-off-by:
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akpm@osdl.org authored
This is a driver to control the brightness of an Apple Cinema Display over USB. It updates the local brightness value if the user presses a button on the display. Signed-off-by:
Michael Hanselmann <linux-kernel@hansmi.ch> Cc: Oliver Neukum <oliver@neukum.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Ian Abbott authored
This patch adds support for Yost Engineering Inc's ServoCenter 3.1 USB product to the ftdi_sio driver's device ID table. The PID was supplied by Aaron Prose of Yost Engineering on the ftdi-usb-sio-devel list. The PID 0xE050 matches the Windows INF files for this device. Signed-off-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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Alan Stern authored
Now that usbhid automatically applies HID_QUIRK_NOGET to keyboards and mice, we no longer need the blacklist entries that were present for no other purpose. This patch (as698) removes them. Signed-off-by:
Vojtech Pavlik <vojtech@suse.cz> Signed-off-by:
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Giridhar Pemmasani authored
RNDIS devices don't get configured owing to a typo in choose_configuration(). This patch from Giridhar Pemmasani fixes the typo. From: Giridhar Pemmasani <giri@lmc.cs.sunysb.edu> Signed-off-by:
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Daniel Drake authored
2.6.16 introduces USB power budgeting in the Linux kernel, and since then, a fair number of users have observed that some of their devices no longer work in unpowered hubs (this is not a bug, the devices claim that they need more than 100mA). The very least we can do is print an informational message to the kernel log when this happens, otherwise it is not at all clear why the device was not accepted. Signed-off-by:
Daniel Drake <dsd@gentoo.org> Signed-off-by:
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David Brownell authored
Remove more log spamming from pegasus: stop talking to the device once we see ENODEV reported. It may take a while before khubd notifies us. Signed-off-by:
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Pete Zaitcev authored
Remove some silly messages and cast in stone "temporary" messages which we keep around. Also, I am hesitant to remove the initialization retries without having the hardware to test (anyone who was at KS04 has a spare?) Signed-off-by:
Pete Zaitcev <zaitcev@yahoo.com> Signed-off-by:
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Pete Zaitcev authored
<zaitcev> I am taling about this: "if (disk->flags & GENHD_FL_UP) del_gendisk(disk);" <zaitcev> If del_gendisk() undoes add_disk() like viro just said, why is it conditional? <viro> huh? <viro> add_disk() sets the damn flag <zaitcev> So, I should not need to check ever <viro> so the above is "if I've called add_disk(), call gendisk()" <viro> which might be what you want, of course <viro> but usually you know if you'd done add_disk() on that puppy anyway In ub, nobody upstream should ever see half-constructed disks before they were passed to add_disk. To that end, only add the struct lun to the list on the path of no return. With that fix in place, we do not need to test GENHD_FL_UP. Signed-off-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Pete Zaitcev authored
Wait for the scheduled work to finish before freeing memory, prevent oops. http://bugzilla.kernel.org/show_bug.cgi?id=6596Signed-off-by:
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Dan Streetman authored
This updates the EHCI driver by adding an improved scheduler for the transaction translators, found in USB 2.0 hubs and used for low and full speed devices. - adds periodic_tt_usecs() and some helper functions, which does the same thing that "periodic_usecs" does, except on the other side of the TT, i.e. it calculates the low/fullspeed bandwidth usage instead of highspeed. - adds a tt_available() function which is the new implementation of what tt_no_collision() does ... while tt_no_collision() ensures that each TT handles only 1 periodic transfer at a time (a very pessimistic approach) this version instead tracks bandwidth and allows each TT to handle as many transfers as will fit on each TT's downstream bus (closer to best-case). The new scheduler is selected by a config option, marked as EXPERIMENTAL so it can be tested (and more broadly reviewed) for a while until it seems safe to remove the original scheduler. Signed-off-by:
Dan Streetman <ddstreet@ieee.org> Signed-off-by:
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Franck Bui-Huu authored
This patch uses completion timeout instead of a timer to implement a timeout when submitting an URB. It also put the task in interruptible state instead of an uninterruptible one while waiting for the completion. Signed-off-by:
Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by:
Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by:
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Pete Zaitcev authored
Remove the silly trailing backslash. Signed-off-by:
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Pete Zaitcev authored
Add a couple of supported devices into the help message. It's a long story... I promised this comment changed to a user long ago, so I'd like to have that promise kept. In reality though, nobody is likely to read this anyway. Signed-off-by:
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Pete Zaitcev authored
I'm going to throw schedule_work away, it's retarded. But for starters, let's have it encapsulated. Also, generic and whiteheat were both calling usb_serial_port_softint and scheduled work. Only one was necessary. Signed-off-by:
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Pete Zaitcev authored
Clean up the unicode handling in io_edgeport. Make get_string size-limited. Signed-off-by:
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Alan Stern authored
This patch (as693b) makes the usbtest driver report errors in the isochronous bulk transfer tests instead of always returning 0. As an arbitrary cutoff, an error is returned if more than 10% of the packet transfers fail. It also stops a test immediately upon receiving an URB submission error. For a test harness, it's especially important to report when errors occur! Signed-off-by:
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Alan Stern authored
This patch (as692) fixes a few memory leaks in some unimportant error pathways of the gadgetfs driver. Signed-off-by:
David Brownell <david-b@pacbell.net> Signed-off-by:
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Alan Stern authored
This patch (as691) fixes a few errors in the AIO interface for the gadgetfs driver. Now requests will complete properly instead of hanging. Signed-off-by:
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Vitja Makarov authored
By the way I have to ask you to add new (vid,pid) pair to cp2101 driver. This device is argussoft's avr in-system programmer AS3M, http://atmel.argussoft.ru/hard.htm it's based on cp2101 chip and works pretty well with the linux driver. It could be used with argussoft's `asisp1109.exe' (http://atmel.argussoft.ru/download/software/as-tools.soft/asisp.zip) tool run under wine. Signed-off-by:
Vitja Makarov <vitja.makarov@gmail.com> Signed-off-by:
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Greg Kroah-Hartman authored
Really just a wrapper around usb_bulk_msg() but now it's documented much better. Signed-off-by: -
Franck Bui-Huu authored
ctrl_complete functions acquires ctx->lock and tries to unlink all queued urbs in case of errors through usb_unlink_urb func. In its turn usb_unlink_urb calls, through the hcd driver, usb_hcd_giveback_urb which calls ctrl_complete again. At this time, ctx->lock is already taken by the same function. Signed-off-by:
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Alan Stern authored
This patch (as690) does the same thing for ISO TDs as as680 did for non-ISO TDs: free them as they are used rather than all at once when an URB is complete. At the same time it fixes a minor buglet (I'm not aware of it ever affecting anyone): An ISO TD should be retired when its frame is over, regardless of whether or not the hardware has marked it inactive. Signed-off-by:
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Alan Stern authored
This patch (as689) stores the period for periodic transfers (interrupt and ISO) in the queue header. This is necessary for proper bandwidth tracking (not yet implemented). It also makes the scheduling of ISO transfers a bit more rigorous, with checks for out-of-bounds frame numbers. Signed-off-by:
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Alan Stern authored
This patch (as688) fixes a small race in uhci-hcd. Because ISO queues aren't controlled by queue headers, they can't be unlinked. Only individual URBs can. So whenever multiple ISO URBs are dequeued, it's necessary to make sure the hardware is done with each one. We can't assume that dequeuing the first URB will suffice to unlink the entire queue. Signed-off-by:
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Alan Stern authored
This patch (as687) changes uhci-hcd to keep track of frame numbers as full-sized integers rather than 11-bit values. This makes them a lot easier to handle and makes it possible to schedule beyond a 2-second window, should anyone ever want to do so. Signed-off-by:
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Micah Dowty authored
This patch increases an arbitrary limit on the size of individual isochronous packets submitted via usbfs. The limit is still arbitrary, but it's now large enough to support the maximum packet size used by high-bandwidth isochronous transfers. Signed-off-by:
Micah Dowty <micah@vmware.com> Signed-off-by:
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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:
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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:
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:
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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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