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- 22 Jul, 2008 5 commits
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Greg Kroah-Hartman authored
device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Signed-off-by:Greg Kroah-Hartman <gregkh@suse.de>
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Greg Kroah-Hartman authored
It's not like this stuff even builds right now, but this will make Randy's scripts happy :) Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: -
Robert P. J. Day authored
Signed-off-by:
Robert P. J. Day <rpjday@crashcourse.ca> Cc: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by:
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Kay Sievers authored
Some (block) devices have a '/' in the name, and need special handling. Let's have that rule to the core, so we can remove it from the block class. Signed-off-by:
Kay Sievers <kay.sievers@vrfy.org> Signed-off-by:
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Dan Williams authored
Why?: There are occasions where userspace would like to access sysfs attributes for a device but it may not know how sysfs has named the device or the path. For example what is the sysfs path for /dev/disk/by-id/ata-ST3160827AS_5MT004CK? With this change a call to stat(2) returns the major:minor then userspace can see that /sys/dev/block/8:32 links to /sys/block/sdc. What are the alternatives?: 1/ Add an ioctl to return the path: Doable, but sysfs is meant to reduce the need to proliferate ioctl interfaces into the kernel, so this seems counter productive. 2/ Use udev to create these symlinks: Also doable, but it adds a udev dependency to utilities that might be running in a limited environment like an initramfs. 3/ Do a full-tree search of sysfs. [kay.sievers@vrfy.org: fix duplicate registrations] [kay.sievers@vrfy.org: cleanup suggestions] Cc: Neil Brown <neilb@suse.de> Cc: Tejun Heo <htejun@gmail.com> Acked-by:
SL Baur <steve@xemacs.org> Acked-by:
Mark Lord <lkml@rtr.ca> Acked-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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- 21 Jul, 2008 35 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (100 commits) usb-storage: revert DMA-alignment change for Wireless USB USB: use reset_resume when normal resume fails usb_gadget: composite cdc gadget fault handling usb gadget: minor USBCV fix for composite framework USB: Fix bug with byte order in isp116x-hcd.c fio write/read USB: fix double kfree in ipaq in error case USB: fix build error in cdc-acm for CONFIG_PM=n USB: remove board-specific UP2OCR configuration from pxa27x-udc USB: EHCI: Reconciling USB register differences on MPC85xx vs MPC83xx USB: Fix pointer/int cast in USB devio code usb gadget: g_cdc dependso on NET USB: Au1xxx-usb: suspend/resume support. USB: Au1xxx-usb: clean up ohci/ehci bus glue sources. usbfs: don't store bad pointers in registration usbfs: fix race between open and unregister usbfs: simplify the lookup-by-minor routines usbfs: send disconnect signals when device is unregistered USB: Force unbinding of drivers lacking reset_resume or other methods USB: ohci-pnx4008: I2C cleanups and fixes USB: debug port converter does not accept more than 8 byte packets ...
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Alan Stern authored
This patch (as1110) reverts an earlier patch meant to help with Wireless USB host controllers. These controllers can have bulk maxpacket values larger than 512, which puts unusual constraints on the sizes of scatter-gather list elements. However it turns out that the block layer does not provide the support we need to enforce these constraints; merely changing the DMA alignment mask doesn't help. Hence there's no reason to keep the original patch. The Wireless USB problem will have to be solved a different way. In addition, there is a reason to get rid of the earlier patch. By dereferencing a pointer stored in the ep_in array of struct usb_device, the current code risks an invalid memory access when it runs concurrently with device removal. The members of that array are cleared before the driver's disconnect method is called, so it should not try to use them. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
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:
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David Brownell authored
These two fixes ensure the new "CDC Composite Device" gadget fails cleanly when it's loaded on hardware that can't support this particular gadget driver. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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David Lopo authored
Fill in a reserved/unused device qualifier field to ensure that the USBCV tests will always pass. Signed-off-by:
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Julien May authored
URB payload data are transfered in wrong byte order on a big endinan architecture (AVR32). Signed-off-by:
Julien May <mailinglist@miromico.ch> Signed-off-by:
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Oliver Neukum authored
in the error case the ipaq driver leaves a dangling pointer to already freed memory that will be freed again. Signed-off-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
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Oliver Neukum authored
Here's the fix. cdc-wdm has the same problem. The fix is the same. Signed-off-by:
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Daniel Ribeiro authored
Remove the board-specific UP2OCR configuration from the pxa27x-udc driver. Signed-off-by:
Daniel Ribeiro <drwyrm@gmail.com> Signed-off-by:
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Srikanth Srinivasan authored
A couple of USB register initializations had to be changed on MPC85xx platforms. This is due to the internal SoC buses being different on MPC83xx SoCs vs MPC85xx SoCs. We currently handle this via an ifdef since 83xx and 85xx are mutually exclusive kernel builds. Signed-off-by:
Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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David Howells authored
Fix pointer/int cast in USB devio code, and thus avoid a compiler warning. A void* data argument passed to bus_find_device() and thence to match_devt() is used to carry a 32-bit datum. However, casting directly between a u32 and a pointer is not permitted - there must be an intermediate cast via (unsigned) long. This was introduced by the following patch: commit 94b1c9fa060ece2c8f080583beb6cc6008e41413 Author: Alan Stern <stern@rowland.harvard.edu> Date: Tue Jun 24 14:47:12 2008 -0400 usbfs: simplify the lookup-by-minor routines This patch (as1105) simplifies the lookup-by-minor-number code in usbfs. Instead of passing the minor number to the callback, which must then reconstruct the entire dev_t value, the patch passes the dev_t value directly. Signed-off-by:
David Howells <dhowells@redhat.com> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Randy Dunlap authored
g_cdc needs to depend on NET, otherwise net-related build errors happen: ERROR: "netif_carrier_on" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "netif_carrier_off" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "netif_rx" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "alloc_etherdev_mq" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "free_netdev" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "register_netdev" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "print_mac" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "dev_kfree_skb_any" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "__alloc_skb" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "eth_type_trans" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "unregister_netdev" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "__netif_schedule" [drivers/usb/gadget/g_cdc.ko] undefined! ERROR: "skb_put" [drivers/usb/gadget/g_cdc.ko] undefined! Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
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Manuel Lauss authored
Copy the OHCI/EHCI PM callbacks of the PCI implementation since they work equally well on Au1xxx hardware. Tested on Au1200. Signed-off-by:
Manuel Lauss <mano@roarinelk.homelinux.net> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Manuel Lauss authored
- Fold multiple probe/remove callbacks into one function; - minor style fixes, no functional changes. Tested on Au1200. Signed-off-by:
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Alan Stern authored
This patch (as1107) fixes a small bug in the usbfs registration and unregistration code. It avoids leaving an error value stored in the device's usb_classdev field and it avoids trying to unregister a NULL pointer. (It also fixes a rather extreme overuse of whitespace.) Signed-off-by:
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Alan Stern authored
This patch (as1106) fixes a race between opening and unregistering device files in usbfs. The current code drops its reference to the device and then reacquires it, ignoring the possibility that the device structure might have been removed in the meantime. It also doesn't check whether the device is already in the NOTATTACHED state when the file is opened. Signed-off-by:
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Alan Stern authored
This patch (as1105) simplifies the lookup-by-minor-number code in usbfs. Instead of passing the minor number to the callback, which must then reconstruct the entire dev_t value, the patch passes the dev_t value directly. Signed-off-by:
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Alan Stern authored
USB device files are accessible in two ways: as files in usbfs and as character device nodes. The two paths are supposed to behave identically, but they don't. When the underlying USB device is unplugged, disconnect signals are sent to processes with open usbfs files (if they requested these signals) but not to processes with open device node files. This patch (as1104) fixes the bug by moving the disconnect-signalling code into a common subroutine which is called from both paths. Putting this subroutine in devio.c removes the only out-of-file reference to struct dev_state, and so the structure's declaration can be moved from usb.h into devio.c. Finally, the new subroutine performs one extra action: It kills all the outstanding async URBs. (I'd kill the outstanding synchronous URBs too, if there was any way to do it.) In the past this hasn't mattered much, because devices were unregistered from usbfs only when they were disconnected. But now the unregistration can also occur whenever devices are unbound from the usb_generic driver. At any rate, killing URBs when a device is unregistered from usbfs seems like a good thing to do. Signed-off-by:
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Alan Stern authored
This patch (as1024) takes care of a FIXME issue: Drivers that don't have the necessary suspend, resume, reset_resume, pre_reset, or post_reset methods will be unbound and their interface reprobed when one of the unsupported events occurs. This is made slightly more difficult by the fact that bind operations won't work during a system sleep transition. So instead the code has to defer the operation until the transition ends. Signed-off-by:
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Jean Delvare authored
Various cleanups and fixes to the i2c code in ohci-pnx4008: * Delete empty isp1301_command. The i2c driver command implementation is optional, so there's no point in providing an empty implementation. * Give a name to isp1301_driver. I'm surprised that i2c-core accepted to register this driver at all. I've chosen "isp1301_pnx" as the name, because it's not a generic ISP1301 driver (much like the isp1301_omap driver.) We might want to make the name even more specific (but "isp1301_ohci_pnx4008" doesn't fit.) * The ISP1301 is definitely not a hardware monitoring device. * Fix a memory leak on failure in isp1301_attach. If i2c_attach_client fails, the client is not registered so isp1301_detach is never called and the i2c_client memory is lost. * Use strlcpy instead of strcpy. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Cc: Vitaly Wool <vitalywool@gmail.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Aleksey Gorelov authored
USB debug port only supports 8 byte rx/tx packets. Although spec implies that "if a packet larger than eight bytes is received from the remote computer, the device must break the larger packet into eight-byte packets before sending the data to the Debug Port", the real PLX NET20DC device does not handle it right - data is corrupted on debug port end if serial interface sends >8 byte urbs. Patch below fixes the issue by limiting tx urb to 8 byte. Signed off by: Aleks Gorelov <dared1st@yahoo.com> Signed-off-by: -
Oliver Neukum authored
cdc-acm must give up secondary interfaces if the primary is disconnected and vice versa. This wasn't done correctly. Signed-off-by:
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Oliver Neukum authored
usb serial decrements the pm counter even if an interface has been disconnected. If it was a logical disconnect the interface may belong already to another driver. This patch introduces a check for disconnected interfaces. Signed-off-by:
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Oliver Neukum authored
this patch implements - suspend/resume - aggressive autosuspend for the cdc-wdm driver - pre/post_reset Signed-off-by:
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Oliver Neukum authored
this patch saves power for cdc-acm devices that support remote wakeup while the device is connected. - request needs_remote_wakeup when needed - delayed write while a device is autoresumed - the device is marked busy when appropriate Signed-off-by:
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Ben Collins authored
The 28xb, as documented in comments, has the same ID's as the 28x. Remove the duplicated ID's from the device tables, and expand the comment to document this. Signed-off-by:
Ben Collins <ben.collins@canonical.com> Signed-off-by:
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Benny Halevy authored
This fixes the compiler warning. Signed-off-by: -
Yoshihiro Shimoda authored
fix interrupt transfer interval for Full/Low speed device. Signed-off-by:
Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by:
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Yoshihiro Shimoda authored
fix the problem that did not set IRQF_TRIGGER_ flag. Signed-off-by:
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Ming Lei authored
This patch renames the existing usb_reset_device in hub.c to usb_reset_and_verify_device and renames the existing usb_reset_composite_device to usb_reset_device. Also the new usb_reset_and_verify_device does't need to be EXPORTED . The idea of the patch is that external interface driver should warn the other interfaces' driver of the same device before and after reseting the usb device. One interface driver shoud call _old_ usb_reset_composite_device instead of _old_ usb_reset_device since it can't assume the device contains only one interface. The _old_ usb_reset_composite_device is safe for single interface device also. we rename the two functions to make the change easily. This patch is under guideline from Alan Stern. Signed-off-by:Ming Lei <tom.leiming@gmail.com>
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Andre Haupt authored
fix the following sparse warning: drivers/usb/serial/usb-serial.c:927:43: warning: incorrect type in argument 3 (different signedness) drivers/usb/serial/usb-serial.c:927:43: expected unsigned int *minor drivers/usb/serial/usb-serial.c:927:43: got int *<noident> CHECK drivers/usb/serial/generic.c Signed-off-by:
Andre Haupt <andre@bitwigglers.org> Signed-off-by:
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Nate Case authored
This adds support for hardware configurations that don't match the chip default register settings (e.g., 16-bit data bus, DACK and DREQ pulled up instead of down, analog overcurrent mode). These settings are passed in via the OF device tree. The PCI interface still assumes the same default values. Signed-off-by:
Nate Case <ncase@xes-inc.com> Acked-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Ming Lei authored
It is the usb interface driver probe() methods that can't call usb_set_configuration, not usb device driver. Signed-off-by:
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Alan Stern authored
This patch (as1103) changes the iteration in the USB scatter-gather to use a standard SG iterator. Otherwise the iteration will fail if it encounters a chained SG list. Signed-off-by:
Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Ming Lei authored
From the current implementation of usb_reset_composite_device function, the iface parameter is no longer useful. This function doesn't do something special for the iface usb_interface,compared with other interfaces in the usb_device. So remove the parameter and fix the related caller. Signed-off-by:
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