13 Jul, 2007
40 commits
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This patch (as915b) combines the public routine usb_port_suspend() and
the private routine __usb_port_suspend() into a single function.By removing the explicit mention of otg_port in the call to
__usb_port_suspend(), we prevent a possible error in which the system
tries to perform HNP on the wrong port when a non-targeted device is
plugged into a non-OTG port.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch fixes a silicon bug in some NEC OHCI chips. The bug appears
at random times and is very, very difficult to reproduce. Without the
following patch, Linux would shut the chip and its associated devices
down. In Apple PowerBooks this leads to an unusable keyboard and mouse
(SSH still working). The idea of restarting the chip is taken from
public Darwin code.Signed-off-by: Michael Hanselmann
Cc: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Disable file_storage USB_CONFIG_ATT_WAKEUP as it requires
user interaction during Chapter 9 tests.Signed-off-by: Tony Lindgren
Acked-by: Alan Stern
Acked-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
This patch fixes the endianness select for transfer buffers in EHCI
controllers that have Transaction Translator built in the hub. Also I
cleaned it up to make rid of magic numbers.Signed-off-by: Vladimir Barinov
Cc:
Signed-off-by: Greg Kroah-Hartman -
Some further cleanup after Oliver's patch to update the tty
buffering. The input buffer is not used at all anymore, so
I removed it.Signed-off-by: Al Borchers
Signed-off-by: Greg Kroah-Hartman -
this is an update of the whiteheat driver. It fixes:
- switch from spinlocks to mutexes to prevent sleeping with a spinlock held
- locking to stop races with disconnect
- error handling for commands that time outSigned-off-by: Oliver Neukum
Signed-off-by: Greg Kroah-Hartman -
This patch set introduces usb_anchor and uses it to implement all modern
APIs in the skeleton driver.- proper error reporting in the skeleton driver
- implementation of flush()Signed-off-by: Oliver Neukum
Signed-off-by: Greg Kroah-Hartman -
- introduction of usb_anchor and its methods
Signed-off-by: Oliver Neukum
Signed-off-by: Greg Kroah-Hartman -
Patch is to prevent the OTG host of doing 3 times enumeration of
device when the Host suspends for HNP. The error code used in
this case is ENOTSUPP.Signed-off-by: Vikram Pandita
Acked-by: Alan Stern
Acked-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Fix a few serial gadget issues reported by the latest "sparse":
some functions should have been defined as static, not just
declared that way.Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
in order to be able to switch back to 'flow-control none'
after having activated 'flow-control rts/cts', I made
a small change to 'pl2303.c'.Signed-off-by: Greg Kroah-Hartman
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the generic driver also had its own buffering.
Signed-off-by: Oliver Neukum
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this fixes the flushing trouble due to its own buffering for this driver.
Signed-off-by: Oliver Neukum
Cc: Al Borchers
Signed-off-by: Greg Kroah-Hartman -
the new tty buffering code allows usb drivers to stop private buffering.
In fact we must do so to allow flushing to work correctly. This does so
for the visor driver.Signed-off-by: Oliver Neukum
Signed-off-by: Greg Kroah-Hartman -
Make sure gadgetfs userspace interface is properly exported:
- Move to ;
- Export it using Kbuild;
- Add an #include guard;
- Correct some internal documentation;
- Update struct layout so it's the same on 32/64 bit kernels.Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Substitute USB instances of __attribute__ ((unused)) functions with the
newly introduced __maybe_unused.Signed-off-by: David Rientjes
Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
For MPC831x support, change the ehci-fsl driver to preserve
bits set in platform code. Add a common CONFIG_USB_EHCI_FSL
to indicate presence of Freescale EHCI SOC. Add FSL_USB2_DR_OTG
operating mode support, thus both host and device can work for the
mini-ab receptacle. Note: this doesn't enable OTG protocol
support.Signed-off-by: Li Yang
Cc: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Now select the big-endian configuration options
CONFIG_USB_EHCI_BIG_ENDIAN_MMIO and CONFIG_USB_EHCI_BIG_ENDIAN_DESC in
the usb host Kconfig file and not in the platform Kconfig files.Signed-off-by: Stefan Roese
Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
This patch adds support for the AMCC 440EPx EHCI controller whose
in-memory data structures and the registers are represented in big-
endian format.Signed-off-by: Stefan Roese
Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
The new FT232RL allows setting and getting the value of the latency
timer, like on the FT232BM. However, the driver will not create the
sysfs entries for the RL without this one-line patch.I have tested it on two systems with successful results.
From: Stepan Moskovchenko
Signed-off-by: Greg Kroah-Hartman -
This patch (as911) replaces some C++-style commented-out debugging
lines in driver.c with a new "verbose debugging" macro. It makes the
code look cleaner, and it's easier to turn the debugging on or off.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as908) adds central protection in usbcore for the
prototypical race between opening and unregistering a char device.
The spinlock used to protect the minor-numbers array is replaced with
an rwsem, which can remain locked across a call to a driver's open()
method. This guarantees that open() and deregister() will be mutually
exclusive.The private locks currently used in several individual drivers for
this purpose are no longer necessary, and the patch removes them. The
following USB drivers are affected: usblcd, idmouse, auerswald,
legousbtower, sisusbvga/sisusb, ldusb, adutux, iowarrior, and
usb-skeleton.As a side effect of this change, usb_deregister_dev() must not be
called while holding a lock that is acquired by open(). Unfortunately
a number of drivers do this, but luckily the solution is simple: call
usb_deregister_dev() before acquiring the lock.In addition to these changes (and their consequent code
simplifications), the patch fixes a use-after-free bug in adutux and a
race between open() and release() in iowarrior.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
Okay, found it. The root cause here was a missing CONFIG_USB_SUSPEND=y,
which means the hci_usb device never got marked as USB_STATE_SUSPENDED,
which then caused the loop to go on forever.The system works fine now with CONFIG_USB_SUSPEND=y in the .config.
Here's the patch to prevent future lockups for this or other causes.
I no longer need it, but it does still seem a good idea.Signed-off-by: Mark Lord
Signed-off-by: Greg Kroah-Hartman -
Recently, the USB device matching code stopped matching generic interface
matches against devices with vendor-specific device class values.Some drivers now need to explicitly match USB device ID's (in addition to
generic interface info) to retain the same behaviour as before. This new macro,
suggested by Alan Stern, makes the explicit device/interface matching a little
simpler for those users.Signed-off-by: Daniel Drake
Signed-off-by: Greg Kroah-Hartman -
Remove some dead CONFIG_ symbols, and document the status of a few others.
The "gadget_chips.h" references are by and large to drivers which exist
but haven't yet been submitted for merging to the main 2.6 tree.Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Improvements and fixes to the MCT U232 USB/serial interface driver.
Implement RTS/CTS hardware flow control. Implement HUPCL. Bring
handling of DTR and RTS into conformance with other Linux serial
port drivers - assert both signals when opening device, even if
"crtscts" is not currently selected.Signed-off-by: Dave Platt
Signed-off-by: Greg Kroah-Hartman -
This patch modifies the USB regular 250ms timer to be "perfectly aligned" to
the second and quarters thereof. This change is there to make sure that if
you have multiple USB ports, the timers for all these ports will fire at the
same time rather than all spread out. All spread out wakes the CPU up from
power saving idle a lot more than needed...Signed-off-by: Arjan van de Ven
Signed-off-by: Greg Kroah-Hartman -
This patch adds support for the most recent Digi EdgePort USB serial
devices.Signed-off-by: Martin K. Petersen
Signed-off-by: Mike Swift
Signed-off-by: Jeremy McBane
Signed-off-by: Greg Kroah-Hartman -
This patch (as898) changes the port reset code in the hub driver. If
a connect change occurs, it is reported the same way as a disconnect
(which of course is what it really is).It also changes usb_reset_device(), to prevent the routine from futilely
retrying the reset after a disconnect has occurred.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as895) fixes up a loose end in the port-handover code for
the USB-Persist facility. A special case occurs when a high-speed
device is attached to a port which the user has designated to run at
full-speed only; the port must be disabled before the handover can
take place.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as888) adds a new USB device quirk for devices which are
unable to resume correctly. By using the new code added for the
USB-persist facility, it is a simple matter to reset these devices
instead of resuming them. To get things kicked off, a quirk entry is
added for the Philips PSC805.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as887) changes the way ehci-hcd and ohci-hcd handle a loss
of VBUS power during suspend. In order for the USB-persist facility
to work correctly, it is necessary for low- and full-speed devices
attached to a high-speed port to be handed back to the companion
controller during resume processing.This entails three changes: adding code to ehci-hcd to perform the
handover, removing code from ohci-hcd to turn off ports during
root-hub reinit, and adding code to ohci-hcd to turn on ports during
PCI controller resume. (Other bus glue resume methods for platforms
supporting high-speed controllers would need a similar change, if any
existed.)Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
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
Signed-off-by: Greg Kroah-Hartman -
Add a class which allows for an easier integration with udev.
This code was originally written by Paolo Abeni, and arrived to my tree
as a part of big patch to add binary API on December 18. As I understand,
Paolo always meant the class to be a part of the whole thing. This is his
udev rule to go along with the patch:KERNEL=="usbmon[0-9]*", NAME="usbmon%n", MODE="0440",OWNER="root",GROUP="bin"
Signed-off-by: Pete Zaitcev
Signed-off-by: Greg Kroah-Hartman -
Last week I've been searching for a driver for the CA-42 cable (see usb
below) that fitted my kernel 2.6.20. I only found an abandoned version for a
driver on your website that indeed worked on 2.6.18 but wouldn't even
compile with a more recent 2.6.20 kernel.I fiddled 2 evenings with the kernel code and have patched it up now to work
with the modifications in the 2.6.20 kernel. The patch is attached hereafter
and it works fine (at least for me :-) ).Bus 2 Device 13: ID 0ea0:6858 Ours Technology, Inc.
I had to fiddle a little with the settings in .gnokiirc but that also
occurred with the older 2.6.18 kernel. Nevertheless, on one system with this
cable and my Nokia 6070 I had best results with :model = 6510
connection = dku5while on an other system with the same kernel, cable and phone it only worked
with :model = AT
connection = serial
serial_write_usleep = 1From: Kees Lemmens
Cc:
Cc:
Signed-off-by: Greg Kroah-Hartman -
Remove atomic operations on the reference counter for EHCI queue heads.
On various platforms (including ppc7448), atomic operations are unusable
with dma-coherent memory.Signed-off-by: Steven J. Hill
Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Make a "menuconfig" out of the Kconfig objects "menu, ..., endmenu", so that
the user can disable all the options in that menu at once instead of having to
disable each option separately.Signed-off-by: Jan Engelhardt
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
This revised patch (as893c) improves the method used by the hub driver
to release its private data structure. The current code is non-robust,
relying on a memory region not getting reused by another driver after
it has been freed. The patch adds a reference count to the structure,
resolving the question of when to release it.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as892) removes the "locktree" routine from the hub driver.
It currently is used in only one place, by a single kernel thread;
hence it isn't doing any good.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This revised patch (as891b) removes two unnecessary references to
intf->dev.power.power_state from usb-storage, and replaces a reference
to root_hub->dev.power.power_state with a check of hcd->state. This
is in preparation for the removal of dev.power.power_state, which is
already deprecated.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman
