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* usb: cdc-wdm: ignore speed change notificationsBjørn Mork2013-10-291-0/+4
| | | | | | | | | | | | | | | | | | | | | The only notification supported by the Device Management class is Response Available. But this driver is also used as a subdriver of other CDC classes, allowing notifications like Speed Change and Network Connection. This results in log messages which are only confusing to an end user: [66255.801874] cdc_mbim 1-3:1.5: unknown notification 42 received: index 5 len 8 These drivers use cdc-wdm as a subdriver to allow access to an embedded management protocol, and all management is expected to use this protocol. There is therefore no need to handle any of these optional CDC notifications. Instead we can let the cdc-wdm driver recognize them and log a debug level message instead of an error. Reported-by: Rob Gardner <robmatic@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE ↵Greg Suarez2013-10-291-4/+34
| | | | | | | | | | | | | | | | notifications Some MBIM devices send back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications when sending a message over multiple fragments or when there are unsolicited messages available. Count up the number of USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications received and decrement the count and submit the urb for the next response each time userspace completes a read the response. Signed-off-by: Greg Suarez <gsuarez@smithmicro.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: fix up attribute permissionsGreg Kroah-Hartman2013-08-251-8/+8
| | | | | | | | In auditing the usbtmc sysfs files, a bunch of them were being created as "read only", yet they have logic to handle writing to. So fix them up by setting the permissions properly. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 3.11-rc6 into usb-nextGreg Kroah-Hartman2013-08-181-4/+4
|\ | | | | | | | | | | We want these USB fixes in this branch as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * USB: usbtmc: fix big-endian probe of Rigol devicesJohan Hovold2013-08-121-4/+4
| | | | | | | | | | | | | | | | | | | | | | Fix probe of Rigol devices on big-endian machines. A quirk for these devices was introduced by commit c2e314835 ("USB: usbtmc: Set rigol_quirk if device is listed") but was only enabled on little-endian machines. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | USB: cdc-wdm: fix race between interrupt handler and taskletOliver Neukum2013-08-121-4/+9
| | | | | | | | | | | | | | | | | | Both could want to submit the same URB. Some checks of the flag intended to prevent that were missing. Signed-off-by: Oliver Neukum <oneukum@suse.de> CC: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usbtmc: convert to devm_kzallocAndy Shevchenko2013-07-251-2/+1
| | | | | | | | | | | | | | kfree(data) will be called implicitly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usbtmc: remove redundant bracesAndy Shevchenko2013-07-251-14/+14
| | | | | | | | | | | | | | | | There is a few cases where braces are not needed. This patch removes unnecessary '& 255' pieces as well when lvalue type is u8. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usbtmc: call pr_err instead of plain printkAndy Shevchenko2013-07-251-5/+4
| | | | | | | | | | | | | | Additionally remove useless label. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usbtmc: remove trailing spacesAndy Shevchenko2013-07-251-3/+3
| | | | | | | | | | | | | | | | Recent patch series introduces few trailing spaces. This patch removes them. No functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | usb: class: cdc-acm: be careful with bIntervalFelipe Balbi2013-07-251-1/+1
|/ | | | | | | | | bInterval must be on the range 1 - 16, if we want to pass the maximum allowed, we should be passing 16 Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: cdc-acm: remove unneeded spin_lock_irqsave/restore on write pathGreg Kroah-Hartman2013-06-171-33/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When writing data we were: lock do some work unlock call function lock do some work unlock return return It turns out, that "function" was only ever called in the one place, so instead of locking/unlocking for no good reason, just inline the function and only grab the lock once. This has sped up the pathological case of sending 1 byte packets to a loop-back cdc-acm device from 49600 bytes per second to 50100 bytes a second on my workstation. A tiny increase yes, but noticable, and now the spinlock isn't the hottest thing on the perf graph anymore. Yes, we are still waiting for the hardware for the most part, but getting rid of a spinlock_irq_save() call for every packet is still a good thing. And we end up deleting lines of code, always a win overall. This was found by using a Teensy 3.0 device and the test program and firmware located at: http://www.pjrc.com/teensy/benchmark_usb_serial_receive.html Reported-by: Paul Stoffregen <paul@pjrc.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: Change magic number to constantAlexandre Peixoto Ferreira2013-05-161-5/+5
| | | | | | | | | These patches implement a modification of the USBTMC protocol to allow operation with Rigol equipment. Cosmetic change to show that 12 is the USBTMC header size. Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: usbtmc_read sends multiple TMC header based on rigol_quirkAlexandre Peixoto Ferreira2013-05-161-38/+114
| | | | | | | | | | | | | These patches implement a modification of the USBTMC protocol to allow operation with Rigol equipment. The usbtmc_read function is modified so if the quirk is active, the TMC header is sent with the size of the data as the whole size of the request. If the quirk is inactive, the TMC request is sent once per bulk transfer and with size limited to the bulk transfer size. In the case of the quirk, only the first response contains the TMC header and the others are just data. Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: Set rigol_quirk if device is listedAlexandre Peixoto Ferreira2013-05-161-0/+14
| | | | | | | | | | These patches implement a modification of the USBTMC protocol to allow operation with Rigol equipment. It an idVendor and idProduct is found on the usbtmc_id_quirk array, the rigol_quirk is set for this device. Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: TMC request code segregated from usbtmc_readAlexandre Peixoto Ferreira2013-05-161-31/+54
| | | | | | | | | | | | These patches implement a modification of the USBTMC protocol to allow operation with Rigol equipment. The TMC request portion of the code in function usbtmc_read is segregated to a function send_request_dev_dep_msg_in as implemented by tommie in https://github.com/tommie/linux/blob/usbtmc-rigol/drivers/usb/class/usbtmc.c allowing the reuse later. Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: usbtmc: Add flag rigol_quirk to usbtmc_device_dataAlexandre Peixoto Ferreira2013-05-161-0/+14
| | | | | | | | | | | | | | | These patches implement a modification of the USBTMC protocol to allow operation with Rigol equipment. Rigol requires that a single TMC request to receive any buffer size and bulk requests to get the data. The original algorithm sends a TMC request for each subset of the data (a single USB transaction). The modification is only active for Rigol equipment, vendor and product set is contained in the array usbtmc_id_quirk. This patch creates the rigol_quirk variable and the arrays for the idvendor and idproduct. Signed-off-by: Alexandre Peixoto Ferreira <alexandref75@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2013-05-012-0/+14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "Assorted fixes and cleanups to the existing drivers plus a new driver for IMS Passenger Control Unit device they use for ther in-flight entertainment system." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (44 commits) Input: trackpoint - Optimize trackpoint init to use power-on reset Input: apbps2 - convert to devm_ioremap_resource() Input: ALPS - use %ph to print buffers ARM - shmobile: Armadillo800EVA: Move st1232 reset pin handling Input: st1232 - add reset pin handling Input: st1232 - convert to devm_* infrastructure Input: MT - handle semi-mt devices in core Input: adxl34x - use spi_get_drvdata() Input: ad7877 - use spi_get_drvdata() and spi_set_drvdata() Input: ads7846 - use spi_get_drvdata() and spi_set_drvdata() Input: ims-pcu - fix a memory leak on error Input: sysrq - supplement reset sequence with timeout functionality Input: tegra-kbc - support for defining row/columns based on SoC Input: imx_keypad - switch to using managed resources Input: arc_ps2 - add support for device tree Input: mma8450 - fix signed 12bits to 32bits conversion Input: eeti_ts - remove redundant null check Input: edt-ft5x06 - remove redundant null check before kfree Input: ad714x - add CONFIG_PM_SLEEP to suspend/resume functions Input: adxl34x - add CONFIG_PM_SLEEP to suspend/resume functions ...
| * Merge tag 'v3.9-rc3' into nextDmitry Torokhov2013-03-173-14/+65
| |\ | | | | | | | | | | | | Merge with mainline to bring in module_platform_driver_probe() and devm_ioremap_resource().
| * | USB: cdc-acm - blacklist IMS PCU deviceDmitry Torokhov2013-03-122-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IMS PCU (Passenger Control Unit) device used custom protocol over serial line, so it is presenting itself as CDC ACM device. Now that we have proper in-kernel driver for it we need to black-list the device in cdc-acm driver. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | | Merge tag 'usb-3.10-rc1' of ↵Linus Torvalds2013-04-294-35/+24
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB patches from Greg Kroah-Hartman: "Here's the big USB pull request for 3.10-rc1. Lots of USB patches here, the majority being USB gadget changes and USB-serial driver cleanups, the rest being ARM build fixes / cleanups, and individual driver updates. We also finally got some chipidea fixes, which have been delayed for a number of kernel releases, as the maintainer has now reappeared. All of these have been in linux-next for a while" * tag 'usb-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (568 commits) USB: ehci-msm: USB_MSM_OTG needs USB_PHY USB: OHCI: avoid conflicting platform drivers USB: OMAP: ISP1301 needs USB_PHY USB: lpc32xx: ISP1301 needs USB_PHY USB: ftdi_sio: enable two UART ports on ST Microconnect Lite usb: phy: tegra: don't call into tegra-ehci directly usb: phy: phy core cannot yet be a module USB: Fix initconst in ehci driver usb-storage: CY7C68300A chips do not support Cypress ATACB USB: serial: option: Added support Olivetti Olicard 145 USB: ftdi_sio: correct ST Micro Connect Lite PIDs ARM: mxs_defconfig: add CONFIG_USB_PHY ARM: imx_v6_v7_defconfig: add CONFIG_USB_PHY usb: phy: remove exported function from __init section usb: gadget: zero: put function instances on unbind usb: gadget: f_sourcesink.c: correct a copy-paste misnomer usb: gadget: cdc2: fix error return code in cdc_do_config() usb: gadget: multi: fix error return code in rndis_do_config() usb: gadget: f_obex: fix error return code in obex_bind() USB: storage: convert to use module_usb_driver() ...
| * | | USB: usbtmc: remove unnecessary memory allocationMing Lei2013-04-191-22/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Inside usbtmc_ioctl_clear_out_halt()/usbtmc_ioctl_clear_in_halt(), usb_clear_halt() needn't any buffer to pass in, so remove the unnecessary memory allocation. Signed-off-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: regroup all depends on USB within an if USB blockFlorian Fainelli2013-04-091-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the depends on USB from all config symbols in drivers/usb/host/Kconfig and replace that with an if USB / endif block as suggested by Alan Stern. Some source ... Kconfig lines have been shuffled around to permit a better regroupment of the Kconfig files depending on "config USB" item. No functionnal change is introduced. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | USB: cdc-wdm: implement IOCTL_WDM_MAX_COMMANDBjørn Mork2013-03-251-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Userspace applications need to know the maximum supported message size. The cdc-wdm driver translates between a character device stream and a message based protocol. Each message is transported as a usb control message with no further encapsulation or syncronization. Each read or write on the character device should translate to exactly one usb control message to ensure that message boundaries are kept intact. That means that the userspace application must know the maximum message size supported by the device and driver, making this size a vital part of the cdc-wdm character device API. CDC WDM and CDC MBIM functions export the maximum supported message size through CDC functional descriptors. The cdc-wdm and cdc_mbim drivers will parse these descriptors and use the value chosen by the device. The only current way for a userspace application to retrive the value is by duplicating the descriptor parsing. This is an unnecessary complex task, and application writers are likely to postpone it, using a fixed value and adding a "todo" item. QMI functions have no way to tell the host what message size they support. The qmi_wwan driver use a fixed value based on protocol recommendations and observed device behaviour. Userspace applications must know and hard code the same value. This scheme will break if we ever encounter a QMI device needing a device specific message size quirk. We are currently unable to support such a device because using a non default size would break the implicit userspace API. The message size is currently a hidden attribute of the cdc-wdm userspace API. Retrieving it is unnecessarily complex, increasing the possibility of drivers and applications using different limits. The resulting errors are hard to debug, and can only be replicated on identical hardware. Exporting the maximum message size from the driver simplifies the task for the userspace application, and creates a unified information source independent of device and function class. It also serves to document that the message size is part of the cdc-wdm userspace API. This proposed API extension has been presented for the authors of userspace applications and libraries using the current API: libmbim, libqmi, uqmi, oFono and ModemManager. The replies were: Aleksander Morgado: "We do really need max message size for MBIM; and as you say, it may be good to have the max message size info also for QMI, so the new ioctl seems a good addition. So +1 from my side, for what it's worth." Dan Williams: "Yeah, +1 here. I'd prefer the sysfs file, but the fact that that doesn't work for fd passing pretty much kills it." No negative replies are so far received. Cc: Aleksander Morgado <aleksander@lanedo.com> Cc: Dan Williams <dcbw@redhat.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | Merge 3.9-rc4 into usb-nextGreg Kroah-Hartman2013-03-251-3/+19
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | This picks up the fixes we had for USB in 3.9-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * \ \ \ Merge branch 'usb-linus' into usb-nextGreg Kroah-Hartman2013-03-201-3/+20
| |\ \ \ \ | | | |_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | This is to pick up the fixes in that branch, and let Alan fix the merge error in drivers/usb/host/ehci-timer.c better than I just did (as I know I messed it up...) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: cdc-acm: Remove obsolete predefined speeds arraySamuel Tardieu2013-03-151-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modern speed handling has been introduced in 2009 by commit 9b80fee149a875a6292b2556ab2c64dc7ab7d6f5 (cdc_acm: Fix to use modern speed interfaces) and the acm_tty_speed array has been unused since. Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | Merge 3.9-rc5 into tty-nextGreg Kroah-Hartman2013-04-011-3/+19
|\ \ \ \ \ | | |_|/ / | |/| | | | | | | | | | | | | | | | | | We need the fixes here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | USB: cdc-acm: fix device unregistrationJohan Hovold2013-03-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unregister tty device in disconnect as is required by the USB stack. By deferring unregistration to when the last tty reference is dropped, the parent interface device can get unregistered before the child resulting in broken hotplug events being generated when the tty is finally closed: KERNEL[2290.798128] remove /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:3.1 (usb) KERNEL[2290.804589] remove /devices/pci0000:00/0000:00:1d.7/usb2/2-1 (usb) KERNEL[2294.554799] remove /2-1:3.1/tty/ttyACM0 (tty) The driver must deal with tty callbacks after disconnect by checking the disconnected flag. Specifically, further opens must be prevented and this is already implemented. Cc: stable <stable@vger.kernel.org> Cc: Oliver Neukum <oneukum@suse.de> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | usb: cdc-acm: fix error handling in acm_probe()Alexey Khoroshilov2013-03-211-2/+17
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acm_probe() ignores errors in tty_port_register_device() and leaves intfdata pointing to freed memory on alloc_fail7 error path. The patch fixes the both issues. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | Merge 3.9-rc3 into tty-nextGreg Kroah-Hartman2013-03-211-3/+20
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| * | | USB: cdc-wdm: fix buffer overflowOliver Neukum2013-03-121-3/+20
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | The buffer for responses must not overflow. If this would happen, set a flag, drop the data and return an error after user space has read all remaining data. Signed-off-by: Oliver Neukum <oliver@neukum.org> CC: stable@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | TTY: add tty_port_tty_hangup helperJiri Slaby2013-03-181-18/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It allows for cleaning up on a considerable amount of places. They did port_get, hangup, kref_put. Now the only thing needed is to call tty_port_tty_hangup which does exactly that. And they can also decide whether to consider CLOCAL or completely ignore that. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | TTY: add tty_port_tty_wakeup helperJiri Slaby2013-03-181-6/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | It allows for cleaning up on a considerable amount of places. They did port_get, wakeup, kref_put. Now the only thing needed is to call tty_port_tty_wakeup which does exactly that. One exception is ifx6x60 where tty_wakeup was open-coded. We now call tty_wakeup properly there. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge 3.8-rc5 into tty-nextGreg Kroah-Hartman2013-01-251-0/+3
|\ \ | | | | | | | | | | | | | | | This resolves a number of tty driver merge issues found in linux-next Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: cdc-acm: Add support for "PSC Scanning, Magellan 800i"Denis N Ladin2013-01-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adding support "PSC Scanning, Magellan 800i" in cdc-acm Very simple, but very necessary. Suitable for all versions of the kernel > 2.6 Signed-off-by: Denis N Ladin <denladin@gmail.com> Cc: stable <stable@vger.kernel.org> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | tty: Added a CONFIG_TTY option to allow removal of TTYJoe Millenbach2013-01-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The option allows you to remove TTY and compile without errors. This saves space on systems that won't support TTY interfaces anyway. bloat-o-meter output is below. The bulk of this patch consists of Kconfig changes adding "depends on TTY" to various serial devices and similar drivers that require the TTY layer. Ideally, these dependencies would occur on a common intermediate symbol such as SERIO, but most drivers "select SERIO" rather than "depends on SERIO", and "select" does not respect dependencies. bloat-o-meter output comparing our previous minimal to new minimal by removing TTY. The list is filtered to not show removed entries with awk '$3 != "-"' as the list was very long. add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350) function old new delta chr_dev_init 166 170 +4 allow_signal 80 82 +2 static.__warned 143 142 -1 disallow_signal 63 62 -1 __set_special_pids 95 94 -1 unregister_console 126 121 -5 start_kernel 546 541 -5 register_console 593 588 -5 copy_from_user 45 40 -5 sys_setsid 128 120 -8 sys_vhangup 32 19 -13 do_exit 1543 1526 -17 bitmap_zero 60 40 -20 arch_local_irq_save 137 117 -20 release_task 674 652 -22 static.spin_unlock_irqrestore 308 260 -48 Signed-off-by: Joe Millenbach <jmillenbach@gmail.com> Reviewed-by: Jamey Sharp <jamey@minilop.net> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | TTY: switch tty_flip_buffer_pushJiri Slaby2013-01-151-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | TTY: switch tty_insert_flip_stringJiri Slaby2013-01-151-1/+2
|/ / | | | | | | | | | | | | | | | | | | | | | | Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. tty_insert_flip_string this time. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / cdc-acm: implement TIOCSSERIAL to avoid blocking close(2)Dan Williams2012-11-151-0/+38
|/ | | | | | | | | | | | | | | | | Some devices (ex Nokia C7) simply don't respond at all when data is sent to some of their USB interfaces. The data gets stuck in the TTYs queue and sits there until close(2), which them blocks because closing_wait defaults to 30 seconds (even though the fd is O_NONBLOCK). This is rarely desired. Implement the standard mechanism to adjust closing_wait and let applications handle it how they want to. See also 02303f73373aa1da19dbec510ec5a4e2576f9610 for usb_wwan.c. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable <stable@vger.kernel.org> Acked-by: Oliver Neukum <oneukum@suse.de> Tested-by: Aleksander Morgado <aleksander@gnu.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: acm: fix the computation of the number of data bitsNicolas Boullis2012-10-171-5/+15
| | | | | | | | | | The current code assumes that CSIZE is 0000060, which appears to be wrong on some arches (such as powerpc). Signed-off-by: Nicolas Boullis <nboullis@debian.org> Acked-by: Oliver Neukum <oneukum@suse.de> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: cdc-acm: fix pipe type of write endpointMing Lei2012-10-171-1/+1
| | | | | | | | | | If the write endpoint is interrupt type, usb_sndintpipe() should be passed to usb_fill_int_urb() instead of usb_sndbulkpipe(). Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Ming Lei <ming.lei@canonical.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Add CDC-ACM support for the CX93010-2x UCMxx USB ModemJean-Christian de Rivaz2012-10-111-0/+3
| | | | | | | | | | | | This USB V.92/V.32bis Controllered Modem have the USB vendor ID 0x0572 and device ID 0x1340. It need the NO_UNION_NORMAL quirk to be recognized. Reference: http://www.conexant.com/servlets/DownloadServlet/DSH-201723-005.pdf?docid=1725&revid=5 See idVendor and idProduct in table 6-1. Device Descriptors Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds2012-10-011-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull USB changes from Greg Kroah-Hartman: "Here is the big USB pull request for 3.7-rc1 There are lots of gadget driver changes (including copying a bunch of files into the drivers/staging/ccg/ directory so that the other gadget drivers can be fixed up properly without breaking that driver), and we remove the old obsolete ub.c driver from the tree. There are also the usual XHCI set of updates, and other various driver changes and updates. We also are trying hard to remove the old dbg() macro, but the final bits of that removal will be coming in through the networking tree before we can delete it for good. All of these patches have been in the linux-next tree. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up several annoying - but fairly mindless - conflicts due to the termios structure having moved into the tty device, and often clashing with dbg -> dev_dbg conversion. * tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (339 commits) USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc USB: uas: fix gcc warning USB: uas: fix locking USB: Fix race condition when removing host controllers USB: uas: add locking USB: uas: fix abort USB: uas: remove aborted field, replace with status bit. USB: uas: fix task management USB: uas: keep track of command urbs xhci: Intel Panther Point BEI quirk. powerpc/usb: remove checking PHY_CLK_VALID for UTMI PHY USB: ftdi_sio: add TIAO USB Multi-Protocol Adapter (TUMPA) support Revert "usb : Add sysfs files to control port power." USB: serial: remove vizzini driver usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems Increase XHCI suspend timeout to 16ms USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq USB: sierra_ms: don't keep unused variable fsl/usb: Add support for USB controller version 2.4 USB: qcaux: add Pantech vendor class match ...
| * Merge 3.6-rc6 into usb-nextGreg Kroah-Hartman2012-09-161-4/+8
| |\ | | | | | | | | | | | | | | | | | | | | | | | | This resolves the merge problems with: drivers/usb/dwc3/gadget.c drivers/usb/musb/tusb6010.c that had been seen in linux-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | usb: cdc-acm: remove duplicated include from cdc-acm.cWei Yongjun2012-09-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated include. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge 3.6-rc6 into tty-nextGreg Kroah-Hartman2012-09-161-4/+8
|\ \ \ | | |/ | |/| | | | | | | | | | This pulls in the fixes in 3.6-rc6 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | USB: cdc-wdm: fix wdm_find_device* return valueBjørn Mork2012-09-101-4/+8
| |/ | | | | | | | | | | | | | | | | | | | | A logic error made the wdm_find_device* functions return a bogus pointer into static data instead of the intended NULL no matching device was found. Cc: stable <stable@vger.kernel.org> # v3.4+ Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge 3.6-rc3 into tty-nextGreg Kroah-Hartman2012-08-271-1/+2
|\| | | | | | | | | | | This picks up all of the different fixes in Linus's tree that we also need here. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * USB: CDC ACM: Fix NULL pointer dereferenceSven Schnelle2012-08-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | If a device specifies zero endpoints in its interface descriptor, the kernel oopses in acm_probe(). Even though that's clearly an invalid descriptor, we should test wether we have all endpoints. This is especially bad as this oops can be triggered by just plugging a USB device in. Signed-off-by: Sven Schnelle <svens@stackframe.org> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 01:27:14 +0000