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path: root/drivers/usb/serial/omninet.c
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2009-09-19tty: USB does not need the filp argument in the driversAlan Cox
And indeed none of them use it. Clean this up as it will make moving to a standard open method rather easier. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-15USB: usb-serial: replace shutdown with disconnect, releaseAlan Stern
This patch (as1254) splits up the shutdown method of usb_serial_driver into a disconnect and a release method. The problem is that the usb-serial core was calling shutdown during disconnect handling, but drivers didn't expect it to be called until after all the open file references had been closed. The result was an oops when the close method tried to use memory that had been deallocated by shutdown. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-11tty: Bring the usb tty port structure into more useAlan Cox
This allows us to clean stuff up, but is probably also going to cause some app breakage with buggy apps as we now implement proper POSIX behaviour for USB ports matching all the other ports. This does also mean other apps that break on USB will now work properly. Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-17USB: remove use of err() in drivers/usb/serialGreg Kroah-Hartman
err() is going away, so switch to dev_err() or printk() if it's really needed. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-17USB: remove info() macro from usb/serial driversGreg Kroah-Hartman
USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-10-13tty: usb-serial krefsAlan Cox
Use kref in the USB serial drivers so that we don't free tty structures from under the URB receive handlers as has historically been the case if you were unlucky. This also gives us a framework for general tty drivers to use tty_port objects and refcount. Contains two err->dev_err changes merged together to fix clashes in the -next tree. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22omninet: Use string flip functionsAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22tty-usb-omninet: Coding styleAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-22usb_serial: API all changeAlan Cox
USB serial likes to use port->tty back pointers for the real work it does and to do so without any actual locking. Unfortunately when you consider hangup events, hangup/parallel reopen or even worse hangup followed by parallel close events the tty->port and port->tty pointers are not guaranteed to be the same as port->tty is the active tty while tty->port is the port the tty may or may not still be attached to. So rework the entire API to pass the tty struct. For console cases we need to pass both for now. This shows up multiple drivers that immediately crash with USB console some of which have been fixed in the process. Longer term we need a proper tty as console abstraction Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-24USB: remove unnecessary type casting of urb->contextMing Lei
urb->context code cleanup Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-24usb serial: more fixes and groundwork for tty changesAlan Cox
- If a termios change fails due to lack of memory we should copy the old settings back over as the device has not changed - Note various locking problems - kl5kusb105 had various remaining tty flag handling problems - Make safe_serial use tty_insert_flip_string not open coded loops - set termios speed properly in usb_serial Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-24USB: replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-24USB: serial: remove unneeded number endpoints settingsGreg Kroah-Hartman
The usb-serial core no longer checks these fields so remove them from all of the individual drivers. They will be removed from the usb-serial core in a patch later in the series. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: serial: omninet: clean up urb->status usageGreg Kroah-Hartman
This done in anticipation of removal of urb->status, which will make that patch easier to review and apply in the future. Cc: <linux-usb-devel@lists.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: fix up license wording on some of my usb-serial driversGreg Kroah-Hartman
Also update the copyright date on the pl2303 driver, as it was out of date. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-22USB: fix omninet memory leak found by coverityOliver Neukum
the transfer of allocating the descriptor in attach and no longer in open was incomplete resulting in a memory leak coverity spotted. This fix is against the patch set you posted. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: fix omninet write vs. close raceOliver Neukum
omninet kills all URBs in close. However write() returns as soon as the URB has been submitted. Killing the last URB means a race that can lose that date written in the last call to write(). As a fix this is moved to shutdown(). Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-27USB: omninet memory leak in error caseOliver Neukum
memory allocated must be freed in the error case. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07USB serial: add driver pointer to all usb-serial driversJohannes Hölzl
Every usb serial driver should have a pointer to the corresponding usb driver. So the usb serial core can add a new id not only to the usb serial driver, but also to the usb driver. Also the usb drivers of ark3116, mos7720 and mos7840 missed the flag no_dynamic_id=1. This is added now. Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-09-28usb-serial: possible irq lock inversion (PPP vs. usb/serial)Peter Zijlstra
========================================================= [ INFO: possible irq lock inversion dependency detected ]
2006-07-12[PATCH] USB: move usb-serial.h to include/linux/usb/Greg Kroah-Hartman
USB serial outside of the kernel tree can not build properly due to usb-serial.h being buried down in the source tree. This patch moves the location of the file to include/linux/usb and fixes up all of the usb serial drivers to handle the move properly. Cc: Sergei Organov <osv@javad.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-21[PATCH] USB serial: encapsulate schedule_work, remove double-callingPete Zaitcev
I'm going to throw schedule_work away, it's retarded. But for starters, let's have it encapsulated. Also, generic and whiteheat were both calling usb_serial_port_softint and scheduled work. Only one was necessary. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-12[PATCH] USB: fix omninet driver bugGreg Kroah-Hartman
I introduced this way back in 2.6.13 when adding the port lock logic. This device talks out through different "ports" all at the same time, so the lock logic was wrong, preventing any data from ever being sent properly. Thanks a lot to Bernhard Reiter <bernhard@intevation.de> for being patient and helping with debugging this. Cc: Bernhard Reiter <bernhard@intevation.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] USB: omninet: fix up debugging commentsGreg Kroah-Hartman
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04[PATCH] USB: remove .owner field from struct usb_driverGreg Kroah-Hartman
It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04[PATCH] USB: allow usb drivers to disable dynamic idsGreg Kroah-Hartman
This lets drivers, like the usb-serial ones, disable the ability to add ids from sysfs. The usb-serial drivers are "odd" in that they are really usb-serial bus drivers, not usb bus drivers, so the dynamic id logic will have to go into the usb-serial bus core for those drivers to get that ability. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] USB Serial: move name to driver structureGreg Kroah-Hartman
This fixes up a lot of problems in sysfs with some of the usb serial drivers, they had incorrect driver names. Also saves a tiny ammount of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] USB Serial: get rid of the .owner field in usb_serial_driverGreg Kroah-Hartman
Don't duplicate something that's already in struct driver. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] USB Serial: rename usb_serial_device_type to usb_serial_driverGreg Kroah-Hartman
I'm tired of trying to explain why a "device_type" is really a driver. This better describes exactly what this structure is. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-27[PATCH] USB: add ability for usb-serial drivers to determine if their write ↵Greg Kroah-Hartman
urb is currently being used. This removes a lot of racy and buggy code by trying to check the status of the urb. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-18[PATCH] USB: kfree cleanup for drivers/usb/* - no need to check for NULLJesper Juhl
Get rid of a bunch of redundant NULL pointer checks in drivers/usb/*, there's no need to check a pointer for NULL before calling kfree() on it. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Index: gregkh-2.6/drivers/usb/class/audio.c ===================================================================
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!