Neither /sys/usb/devices nor /sys/bus/devices exist. The correct path
is /sys/bus/usb/devices.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jean Delvareauthored and Greg Kroah-Hartmancommited 2009-09-23 06:46:41 -07:00
Hi there.
On Aug 21 2009, Alan Stern wrote:
> On Thu, 20 Aug 2009, Rogério Brito wrote:
> > Again, just reiterating, what I said before, even though I am not sure
> > if I can reproduce it, I will try to.
>
> A usbmon trace showing what happens when you plug in the drive and
> when you run smartctl would help.
The documentation for usbmon in the kernel 2.6.31-rc7 kernel doesn't
match what the kernel exposes in the debug fs tree. This patch fixes it.
Signed-off-by: Rogério Brito <rbrito@ime.usp.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rogério Britoauthored and Greg Kroah-Hartmancommited 2009-09-23 06:46:37 -07:00
I think this sentence was confusing regarding the possible size
of the data area.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcevauthored and Greg Kroah-Hartmancommited 2009-09-23 06:46:19 -07:00
This patch adds an extension to the binary API so it reaches parity with
existing text API (so-called "1u"). The extension delivers additional data,
such as ISO descriptors and the interrupt interval.
Signed-Off-By: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcevauthored and Greg Kroah-Hartmancommited 2009-03-24 16:20:36 -07:00
Move DMA-mapping.txt to Documentation/PCI/.
DMA-mapping.txt was supposed to be moved from Documentation/ to
Documentation/PCI/. The 00-INDEX files in those two directories
were updated, along with a few other text files, but the file
itself somehow escaped being moved, so move it and update more
text files and source files with its new location.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlapauthored and Linus Torvaldscommited 2009-01-29 18:19:29 -08:00
This patch (as1160b) adds support routines for asynchronous autosuspend
and autoresume, with accompanying documentation updates. There
already are several potential users of this interface, and others are
likely to arise as autosuspend support becomes more widespread.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2009-01-07 09:59:53 -08:00
This patch fixes a comment and clarifies the documentation about the
endianness of descriptors. The current policy is that descriptors will
be little-endian at the API even on big-endian systems; however the
/proc/bus/usb API predates this policy and presents descriptors with
some multibyte fields byte-swapped.
Signed-off-by: Phil Endecott <usb_endian_patch@chezphil.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Phil Endecottauthored and Greg Kroah-Hartmancommited 2008-12-17 10:49:14 -08:00
Commit 7bb5ea54 (usb gadget serial: use composite gadget framework)
changed the default for the use_acm parameter from 0 to 1.
Update the documentation to match.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Peter Korsgaardauthored and Greg Kroah-Hartmancommited 2008-12-17 10:49:13 -08:00
The example is incorrect: there is no 0t socket (the '1t' format has no
bus number in it). Also, correct the broken sentence for USB Tag.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcevauthored and Greg Kroah-Hartmancommited 2008-12-17 10:49:12 -08:00
The UWB radio manager coordinates the use of the radio between the
PALs that may be using it. PALs request use of the radio with
uwb_radio_start() and the radio manager will start beaconing if its
not already doing so. When the last PAL has called uwb_radio_stop()
beaconing will be stopped.
In the future, the radio manager will have a more sophisticated channel
selection algorithm, probably following the Channel Selection Policy
from the WiMedia Alliance when it is finalized. For now, channel 9
(BG1, TFC1) is selected.
The user may override the channel selected by the radio manager and may
force the radio to stop beaconing.
The WUSB Host Controller PAL makes use of this and there are two new
debug PAL commands that can be used for testing.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Correct errors in the descriptions for usb_autopm_enable
and usb_autopm_disable in the USB PM doc.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Geoff Levandauthored and Greg Kroah-Hartmancommited 2008-10-17 14:40:56 -07:00
This adds Documentation for the extensions of the anchor API.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukumauthored and Greg Kroah-Hartmancommited 2008-10-17 14:40:54 -07:00
Added basic support for a Delcom USB 7-segment LED Display
Signed-off by: Harrison Metzger <harrisonmetz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Harrison Metzgerauthored and Greg Kroah-Hartmancommited 2008-10-17 14:40:51 -07:00
Simplify the sysfs ABI of the wusb-cbaf (Cable Based Association)
driver: use one value per file and cause the write of the CHID to
fetch the CDID (instead of requiring a separate read).
Update the example wusb-cbaf script to work with this revised ABI.
Signed-off-by: Felipe Zimmerle <felipe.zimmerle@indt.org.br>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Felipe Zimmerleauthored and David Vrabelcommited 2008-09-17 16:54:35 +01:00
Documentation (and example utilities) for the UWB (and WUSB) stacks.
Some of the documentation may be out-of-date.
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Inaky Perez-Gonzalezauthored and David Vrabelcommited 2008-09-17 16:54:23 +01:00
this mentions a new deadlock due to advanced power management.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukumauthored and Greg Kroah-Hartmancommited 2008-08-13 17:32:52 -07:00
This patch removes the auerswald USB driver from the linux kernel
2.6.26.
This driver was included into the kernel mainly to connect to the ISDN
framework. This was done in linux 2.4.x. For 2.6.x, due to the fragile
and moving ISDN support, this connection was never realized, and the
only use of this driver was for device configuration. In the age of DSL,
the demand of ISDN support is getting very low.
Meanwhile, with the advent of libusb, an userspace driver was done for
the device configuration which works fine for linux and mac. (Thanks to
the libusb developers!). The userspace driver is downloadable from the
auerswald web site.
So this driver is obsolete now and has to be removed. Many thanks to all
developers which helped me to bring this driver up and working.
Signed-off-by: Wolfgang Muees <wolfgang@iksw-muees.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wolfgang Müesauthored and Greg Kroah-Hartmancommited 2008-08-13 17:32:47 -07:00
This patch (as1109b) makes USB-Persist more resilient to errors. With
the current code, if a normal resume fails, it's an unrecoverable
error. With the patch, if a normal resume fails (and if the device is
enabled for USB-Persist) then a reset-resume is tried.
This fixes the problem reported in Bugzilla #10977.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2008-07-21 15:16:48 -07:00
Teach "gadget serial" to use the new abstracted (and bugfixed) TTY glue,
and remove all the orignal tangled-up code. Update the documentation
accordingly. This is a net object code shrink and cleanup; it should
make it a lot easier to see how the TTY glue should accomodate updates
to the TTY layer, be bugfixed, etc.
Notable behavior changes include: it can now support getty even when
there's no USB connection; it fits properly into the mdev/udev world;
and RX handling is better (throttling works, and low latency).
Configurations with scripts setting up the /dev/ttygserial device node
(with "experimental" major number) may want to change that to be a
symlink pointing to the /dev/ttyGS0 file, as a migration aid; else,
just switch entirely over to mdev/udev.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownellauthored and Greg Kroah-Hartmancommited 2008-07-21 15:15:59 -07:00
This adds documentation about the new usb anchor infrastructure.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukumauthored and Greg Kroah-Hartmancommited 2008-04-24 21:16:51 -07:00
This patch (as1048) extends the descriptor checking after a device is
reset. Now the SerialNumber string descriptor is compared to its old
value, in addition to the device and configuration descriptors.
As a consequence, the kmalloc() call in usb_string() is now on the
error-handling pathway for usb-storage. Hence its allocation type is
changed to GFO_NOIO.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2008-04-24 21:16:33 -07:00
This patch (as1047) removes the USB_PERSIST Kconfig option, enabling
it permanently. It also prevents the power/persist attribute from
being created for hub devices; there's no point in having it since
USB-PERSIST is always turned on for hubs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2008-04-24 21:16:32 -07:00
G_PRINTER: Adds a USB printer gadget driver for use in printer firmware.
This adds a USB printer gadget driver for use in printer firmware.
The printer gadget channels data between the USB host and a userspace
program driving the print engine. The user space program reads and
writes the device file /dev/g_printer to receive or send printer data.
It can use ioctl calls to the device file to get or set printer status.
Signed-off-by: Craig W. Nadler <craig@nadler.us>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Craig W. Nadlerauthored and Greg Kroah-Hartmancommited 2008-02-01 14:34:49 -08:00
This patch (as1014) was partly written by Tilman Schmidt. It
clarifies the USB power-management documentation by explaining that
when a disconnect occurs, a suspend method call might not be followed
by either a resume or a reset_resume call.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2007-11-28 13:58:34 -08:00
This patch (as998) adds documentation on how USB power management
works and how to use it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2007-10-12 14:55:34 -07:00
This patch implements a USB serial port driver for the Winchiphead
CH341 USB-RS232 Converter. This chip also implements an IEEE 1284
parallel port, I2C and SPI, but that is not supported by the driver.
Signed-off-by: Frank A Kingswood <frank@kingswood-consulting.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Frank A Kingswoodauthored and Greg Kroah-Hartmancommited 2007-10-12 14:55:29 -07:00
Update usbmon documentation, mentioning the "zero" (wildcard) bus.
Possibly, in my first hunk, the 'either ... or ...' should be rephrased a bit to
be expressed better.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Paolo 'Blaisorblade' Giarrussoauthored and Greg Kroah-Hartmancommited 2007-10-12 14:55:21 -07:00
This patch updates some of the documentation about DMA buffer management
for USB, and ways to avoid extra copying. Our understanding of the issues
has improved over time.
- Most drivers should *avoid* the dma-coherent allocators. There are
a few exceptions (like the HID driver).
- Some methods are currently commented out; it seems folk writing
USB drivers aren't doing performance tuning at that level yet.
- Just avoid highmem; there's no good way to pass an "I can do highmem
DMA" capability through a driver stack. This is easy, everything
already avoids highmem. But it'd be nice if x86_32 systems with much
physical memory could use it directly with network adapters and mass
storage devices. (Patch, anyone?)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownellauthored and Greg Kroah-Hartmancommited 2007-07-12 16:34:42 -07:00
This patch (as920) adds an extra level of protection to the
USB-Persist facility. Now it will apply by default only to hubs; for
all other devices the user must enable it explicitly by setting the
power/persist device attribute.
The disconnect_all_children() routine in hub.c has been removed and
its code placed inline. This is the way it was originally as part of
hub_pre_reset(); the revised usage in hub_reset_resume() is
sufficiently different that the code can no longer be shared.
Likewise, mark_children_for_reset() is now inline as part of
hub_reset_resume(). The end result looks much cleaner than before.
The sysfs interface is updated to add the new attribute file, and
there are corresponding documentation updates.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2007-07-12 16:34:30 -07:00
This patch (as886) adds the controversial USB-persist facility,
allowing USB devices to persist across a power loss during system
suspend.
The facility is controlled by a new Kconfig option (with appropriate
warnings about the potential dangers); when the option is off the
behavior will remain the same as it is now. But when the option is
on, people will be able to use suspend-to-disk and keep their USB
filesystems intact -- something particularly valuable for small
machines where the root filesystem is on a USB device!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Sternauthored and Greg Kroah-Hartmancommited 2007-07-12 16:29:47 -07:00
Convert files within the Documentation directory to UTF-8.
Adrian Bunk:
small additional fixes
Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
John Anthony Kazos Jrauthored and Adrian Bunkcommited 2007-05-09 08:58:19 +02:00
I am no longer with CTI. The Support Department will handle all
inquiries regarding the WH.
Signed-off-by: Stuart MacDonald <stuartm@connecttech.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stuart MacDonaldauthored and Linus Torvaldscommited 2007-05-04 17:41:21 -07:00
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: Pete Zaitcev <zaitcev@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcevauthored and Greg Kroah-Hartmancommited 2007-04-27 13:28:33 -07:00
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: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcevauthored and Greg Kroah-Hartmancommited 2007-02-07 15:44:34 -08:00
Update /proc/bus/usb/devices output to report active altsettings.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownellauthored and Greg Kroah-Hartmancommited 2007-02-07 15:44:33 -08:00
This changes a few mentions of my email address to point to the new one,
leaving things like old copyright messages alone.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean Delvare
authored and
Greg Kroah-Hartman
commited 
Rogério Brito
authored and
Pete Zaitcev
authored and
Németh Márton
authored and
Jiri Kosina
commited 
Matt LaPlante
authored and
Randy Dunlap
authored and
Linus Torvalds
commited 
Alan Stern
authored and
David Vrabel
commited 
Phil Endecott
authored and
Peter Korsgaard
authored and
Geoff Levand
authored and
Oliver Neukum
authored and
Harrison Metzger
authored and
David Vrabel
commited 
Felipe Zimmerle
authored and
Inaky Perez-Gonzalez
authored and
Wolfgang Mües
authored and
David Brownell
authored and
Adrian Bunk
authored and
Matti Linnanvuori
authored and
Robert P. J. Day
authored and
Craig W. Nadler
authored and
Alain Degreffe
authored and
Simon Arlott
authored and
Frank A Kingswood
authored and
Paolo 'Blaisorblade' Giarrusso
authored and
Inaky Perez-Gonzalez
authored and
David Brownell
authored and
John Anthony Kazos Jr
authored and
Adrian Bunk
commited 
Stuart MacDonald
authored and
Linus Torvalds
commited