- 27 Apr, 2007 40 commits
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Kay Sievers authored
o The "real" usb-devices export now a device node which can populate /dev/bus/usb. o The usb_device class is optional now and can be disabled in the kernel config. Major/minor of the "real" devices and class devices are the same. o The environment of the usb-device event contains DEVNUM and BUSNUM to help udev and get rid of the ugly udev rule we need for the class devices. o The usb-devices and usb-interfaces share the same bus, so I used the new "struct device_type" to let these devices identify themselves. This also removes the current logic of using a magic platform-pointer. The name of the device_type is also added to the environment which makes it easier to distinguish the different kinds of devices on the same subsystem. It looks like this: add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1 ACTION=add DEVPATH=/devices/pci0000:00/0000:00:1d.1/usb2/2-1 SUBSYSTEM=usb SEQNUM=1533 MAJOR=189 MINOR=131 DEVTYPE=usb_device PRODUCT=46d/c03e/2000 TYPE=0/0/0 BUSNUM=002 DEVNUM=004 This udev rule works as a replacement for usb_device class devices: SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", \ NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644" Updated patch, which needs the device_type patches in Greg's tree. I also got a bugzilla assigned for this. :) https://bugzilla.novell.com/show_bug.cgi?id=250659Signed-off-by:Kay Sievers <kay.sievers@vrfy.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Randy Dunlap authored
With CONFIG_BLOCK=n, this build error happens: WARNING: "bdev_read_only" [drivers/usb/gadget/g_file_storage.ko] undefined! Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as874) adds another piece to the user-visible part of the USB autosuspend interface. The new power/level sysfs attribute allows users to force the device on (with autosuspend off), force the device to sleep (with autoresume off), or return to normal automatic operation. Signed-off-by:
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Peter Stokes authored
Add logical channel support for ATI Remote Wonder II The ATI Remote Wonder II can be configured with one of 16 unique logical channels. Allowing up to 16 remotes to be used independently within range of each other. This change adds functionality to configure the receiver and filter the input data to respond or exclude remotes configured with different logical channels. Signed-off-by:
Peter Stokes <linux@dadeos.freeserve.co.uk> Acked-by:
Ville Syrjala <syrjala@sci.fi> Signed-off-by:
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Oliver Neukum authored
the sierra driver does not directly use usb_kill_urb(). It uses a wrapper. This wrapper means that callbacks which are running are not killed during close, resubmitting and illicitly pushing data into the tty layer. The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed. The same problem as the option driver. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Oliver Neukum authored
the option driver does not directly use usb_kill_urb(). It uses a wrapper. This wrapper means that callbacks which are running are not killed during close, resubmitting and illicitly pushing data into the tty layer. The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed. Signed-off-by:
Matthias Urlichs <smurf@smurf.noris.de> Signed-off-by:
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Oliver Neukum authored
memory allocated must be freed in the error case. Signed-off-by:
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Alan Stern authored
This patch (as872) adds some WARN_ON()s to various error checks which are never supposed to fail. Unsettlingly, one of them has shown up in a user's log! Maybe making the warning more visible and having the call-stack information available will help pinpoint the source of the problem. Signed-off-by:
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Oliver Neukum authored
there's code unclean w.r.t. endianness in the mos7720 driver. Signed-off-by:
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Adrian Bunk authored
NULL checks should be before the first dereference. Spotted by the Coverity checker. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Oliver Neukum authored
Am Montag, 19. 2007 10:25 schrieb Adrian Bunk: > The Coverity checker spotted the following NULL dereference: And this fixes an oops upon allocation failures. Signed-off-by:
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Randy Dunlap authored
Fix sparse NULL warnings: drivers/usb/net/dm9601.c:88:23: warning: Using plain integer as NULL pointer drivers/usb/net/dm9601.c:174:22: warning: Using plain integer as NULL pointer Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
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Richard Knutsson authored
Signed-off-by:
Richard Knutsson <ricknu-0@student.ltu.se> Signed-off-by:
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Oliver Neukum authored
This fixes: - breaking DMA rules about buffers - usage of _global_ variables to save a single device's attributes - racy access to urb->status - smp monotonity issue with statistics - use of one buffer for many simultaneous URBs - error handling introduced - several instances of following NULL pointers - use after free - unnecessary GFP_ATOMIC - GFP_KERNEL in interrupt - various cleanups - write room granularity issue that bit cdc-acm - race in shutdown Signed-off-by:
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Oliver Neukum authored
io_edgeport is using a global variable without locking. This is _the_ classical race condition. This patch switches to atomic_t. Signed-off-by:
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Alan Stern authored
This patch (as870) adds a delay to ehci-hcd's bus_resume routine. Apparently there are controllers and/or BIOSes out there which need such a delay to get the ports back into their correct state. This fixes Bugzilla #8190. Signed-off-by:
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Alan Stern authored
This patch (as867) adds an entry for the new power/autosuspend attribute in Documentation/ABI/testing, and it changes the behavior of the delay value. Now a delay of 0 means to autosuspend as soon as possible, and negative values will prevent autosuspend. Signed-off-by:
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Alan Stern authored
This patch (as866) adds new entry points for external USB device suspend and resume requests, as opposed to internally-generated autosuspend or autoresume. It also changes the existing remote-wakeup code paths to use the new routines, since remote wakeup is not the same as autoresume. As part of the change, it turns out to be necessary to do remote wakeup of root hubs from a workqueue. We had been using khubd, but it does autoresume rather than an external resume. Using the ksuspend_usb_wq workqueue for this purpose seemed a logical choice. Signed-off-by:
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Oliver Neukum authored
this driver's help text incorrectly claims to support only single port devices. Signed-off-by:
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Oliver Neukum authored
this driver has an interesting way of handling ENOMEM: complain and ignore. If you decide to live with allocation failures, you must 1. guard against URBs without corresponding buffers 2. complete allocation failures 3. always test entries for NULL before you follow the pointers This patch does so. Signed-off-by:
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Christian Engelmayer authored
Correct the offsets of the SI_CTRL, PRI_CTRL registers according to the Reference Manual errata sheet in order to prevent unwanted settings regarding burst transactions and priority states. Signed-off-by:
Christian Engelmayer <Christian.Engelmayer@frequentis.com> Signed-off-by:
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Alan Stern authored
This patch (as865) fixes a race in the HCD removal code discovered by Milan Plzik. Arrival of an interrupt after the root hub was unregistered could cause the root-hub status timer to start up, even after it was supposed to have been shut down. The problem is fixed by moving the del_timer_sync() call to after the HCD's stop() method, at which time IRQ generation should be disabled. Cc: Milan Plzik <milan.plzik@gmail.com> Signed-off-by:
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Simon Arlott authored
I've acquired a second device for testing and plan to make some changes in the near future to export all the device stats to sysfs (based on my proposed patch to add them to the proc file ~2007-01-30). Signed-off-by:
Simon Arlott <simon@fire.lp0.eu> Acked-by:
Duncan Sands <baldrick@free.fr> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Simon Arlott authored
When the device is polled for status there is a lot of useful status information available that is ignored. This patch stores the device info array when the status is polled and adds sysfs files to the usb device to allow userspace to query it. Since the device updates its status internally once a second the poll time is changed to this, and round_jiffies_relative is used to avoid waking the cpu unnecessarily. Signed-off-by:
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Simon Arlott authored
There is currently no path from the ATM device in /sys to the USB device's interface that the driver is using; this patch creates a "device" symlink. It is then possible to get to the cxacru ADSL statistics (http://lkml.org/lkml/2007/2/23/328): /sys/class/atm/cxacru0/device $ ls *_rate *_margin *_attenuation downstream_attenuation downstream_snr_margin upstream_rate downstream_rate upstream_attenuation upstream_snr_margin If this link is not appropriate I'd have to create device files in /sys/class/atm/cxacru0 instead - which seems less appropriate since the ADSL statistics are for the USB device not ATM (which is running over the ADSL). [akpm@linux-foundation.org: cleanups] Signed-off-by:
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Oliver Neukum authored
GFP_KERNEL will do. Signed-off-by:
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Alan Stern authored
This patch (as864) moves the work routine for USB autosuspend from one source file to another. This permits the removal of one whole global symbol (!) and should smooth the way for more changes in the future. Signed-off-by:
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Pete Zaitcev authored
Someone changed the code to kthread and used his style instead of mine. The problem with the block variables is that they provoke shadowing, which is actually exactly what has happened in my other tree which has the class patch. Signed-off-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Pete Zaitcev authored
The usb-storage switched to binding to first endpoint recently. Apparently, there are devices out there with extra endpoints. It is perfectly legal. Signed-off-by:
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Oliver Neukum authored
this patch exports the attributes cdc-acm knows about a device through sysfs. Signed-off-by:
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Oliver Neukum authored
this adds another structure for CDC devices to cdc.h. Signed-off-by:
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Pete Zaitcev authored
This patch adds a new text API, codenamed '1u', which captures more URB fields than old '1t' interface did. Also the '1u' text API is compatible with the future "bus zero" extension. Signed-off-by:
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Oliver Neukum authored
this patch removes usage of BKL from usblcd, which got it from the old skeleton driver. Signed-off-by:
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Oliver Neukum authored
Iet's kill BKL where we can. This is relative to the last patch to the skeleton driver. Signed-off-by:
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Oliver Neukum authored
compilation of the skeleton driver is currently broken. It doesn't compile. So while I am it: - fix typo - add comments to answer common questions - actually allow autosuspend in the driver struct - increase paralellism by restricting code under locks Signed-off-by:
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Milan Svoboda authored
This patch changes last use of hardcoded number of irq to use platfrom_get_irq. Signed-off-by:
Milan Svoboda <msvoboda@ra.rockwell.com> Acked-by:
David Brownell <david-b@pacbell.net> Signed-off-by:
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David Brownell authored
Make the pxa2xx_udc driver fetch its IRQ from platform resources rather than using compile-time constants, so that it works properly on IXP4xx systems not just PXA21x/25x/26x. Other updates: - Do that using platform_get_irq() - Switch to platform_driver_probe() - Handle device_add() errors - Remove "function" sysfs attribute and its potential errors - Whitespace cleanups Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Norihiko Tomiyama authored
I write a patch adding support "SHARP EMONE(S01SH)" device for ipaq.c. EMONE is a PDA with built-in HSDPA function. From: Norihiko Tomiyama <norihiko.tomiyama@ctc-g.co.jp> Signed-off-by: -
Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (46 commits) dev_dbg: check dev_dbg() arguments drivers/base/attribute_container.c: use mutex instead of binary semaphore mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs s2ram: add arch irq disable/enable hooks define platform wakeup hook, use in pci_enable_wake() security: prevent permission checking of file removal via sysfs_remove_group() device_schedule_callback() needs a module reference s390: cio: Delay uevents for subchannels sysfs: bin.c printk fix Driver core: use mutex instead of semaphore in DMA pool handler driver core: bus_add_driver should return an error if no bus debugfs: Add debugfs_create_u64() the overdue removal of the mount/umount uevents kobject: Comment and warning fixes to kobject.c Driver core: warn when userspace writes to the uevent file in a non-supported way Driver core: make uevent-environment available in uevent-file kobject core: remove rwsem from struct subsystem qeth: Remove usage of subsys.rwsem PHY: remove rwsem use from phy core IEEE1394: remove rwsem use from ieee1394 core ...
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Dan Williams authored
Duplicate what Zach Brown did for pr_debug in commit 8b2a1fd1 [akpm@linux-foundation.org: fix a couple of things which broke] Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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