- 01 Feb, 2008 40 commits
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Nick Piggin authored
Convert USB mon driver from nopage to fault. Signed-off-by:
Nick Piggin <npiggin@suse.de> Acked-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Alan Cox authored
Signed-off-by:
Alan Cox <alan@redhat.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Alan Cox authored
Signed-off-by:
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Alan Cox authored
A tester with actual hardware would be useful Signed-off-by:
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Sarah Sharp authored
Signed-off-by:
Sarah Sharp <saharabeara@gmail.com> Signed-off-by:
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Sarah Sharp authored
Without this fix, the pl2303 usb-serial adapter would not suspend properly unless it had been opened first. A pl2303 type_1 chip will still break if the system is hibernated while the RS-232 connector is powered by another system. This was broken before, and a reset resume does not fix it. All other suspend and autosuspend scenarios work with ATEN pl2303 adaptors with HX and type_1 chips. Signed-off-by:
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Sarah Sharp authored
Replace the FISH and SOUP macros that violated the macro guidelines in CodingStyle. Turn them into function calls with clearer variable names. Signed-off-by:
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Alan Stern authored
This patch (as1025) changes the default power budget for dummy-hcd to 500 mA and makes it a preprocessor parameter for easier testing. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Alan Stern authored
This patch (as1028) was mostly written by David Brownell; I made only a few changes (extra log info and a small bug fix -- which might account for why David's version had to be reverted). It adds a new watchdog timer to the ehci-hcd driver to be used exclusively for detecting lost or missing IAA notifications. Previously a shared timer had been used, which may have led to some problems as reported by Christian Hoffmann. Signed-off-by:
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Alan Stern authored
This patch (as1022b) adds stub methods for suspend and resume to the usbfs driver. There isn't much they can do since there's no way to inform a user task about the events. But it's important to have the stubs, because an upcoming change to usbcore will automatically unbind drivers that don't have those methods when a suspend occurs. Signed-off-by:
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Matthias Kaehlcke authored
Edgeport USB Serial Converter: convert semaphore es_sem to the mutex API Signed-off-by:
Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by:
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Alan Stern authored
This patch (as1023) updates the code in usb_reset_composite_device(): Some local variable declarations are moved to inner loops. The interface locks are not acquired. This isn't necessary any more; its only reason was to prevent an interface from being suspended or resumed during the reset. But now interface power management is controlled by the USB device lock, not by the interface lock. The check for whether the interface is registered is removed. There doesn't seem to be any reason for checking; a driver for a non-registered interface deserves to be informed of device resets just as much as any other. Signed-off-by:
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Alan Stern authored
For as long as I've known about it, the USBDEVFS_CONNECT ioctl hasn't done what it's supposed to. The current code reprobes _all_ the unbound USB interfaces; this patch (as1021) makes it reprobe only the interface for which it was called. Signed-off-by:
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Benjamin Herrenschmidt authored
The OHCI driver's IRQ handler, while processing a WDH interrupt, masks and unmasks it. I believe this is both broken (the write may still be posted during the donelist processing it's trying to safeguard) and useless as this IRQ may not be reissued until it's acked (unless this legacy code is an uncommented workaround for some chip erratum). Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Tony Jones authored
We should not have multiple line files in sysfs, this moves the data to debugfs instead, like the UHCI driver. Signed-off-by:
Tony Jones <tonyj@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
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Tony Jones authored
We should not have multiple line files in sysfs, this moves the data to debugfs instead, like the UHCI driver. Signed-off-by:
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Greg Kroah-Hartman authored
Distros (like SuSE) want to know this information, to make it easier to handle support issues. Might as well let everyone benefit from this. This is also enabled whenever CONFIG_USB_DEBUG is enabled, to help with debugging. Signed-off-by: -
Alan Stern authored
This patch (as1017) makes dummy_hcd behave more like the other USB peripheral controller drivers by no longer registering its gadget driver on the platform bus. Doing that has always been a mistake, since a usb_gadget_driver isn't a platform_driver. Instead the gadget driver is left unregistered in sysfs. Signed-off-by:
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Balaji Rao authored
This patch hands over the port to the companion when the hub_port_connect_change fails. Signed-off-by:
Balaji Rao <balajirrao@gmail.com> Signed-off-by:
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Patrik Sevallius authored
I'm having problem with oopses when rebooting, if I modprobe g_serial and rmmod g_serial and do a reboot I get an oops in device_shutdown(). The reason seems to be that usb_gadget_unregister_driver() doesn't do enough cleanup. With this at91_udc patch I don't get the oops. Signed-off-by:
Patrik Sevallius <patrik.sevallius@enea.com> [ Same bug was in other peripheral controller drivers; fixed ] Signed-off-by:
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Andre Haupt authored
This also fixes a sparse warning that symbol 'result' shadows an earlier one. Signed-off-by:
Andre Haupt <andre@bitwigglers.org> Signed-off-by:
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Sarah Sharp authored
Claim the interface for a USB to serial converter when the tty is open, and release the interface when the tty is closed. If a driver doesn't provide a resume function, use the generic resume instead. Make sure the generic resume function does not submit the URBs if we're coming back from autosuspend. On autoresume, we know that the open function will be called next, which will attempt to submit the URBs. If we submit them in the resume function, the open will fail. This works for: - autosuspend - suspending with the tty open or closed - hibernate with the tty closed A hibernate (or a suspend that causes the USB subsystem to lose power) has issues. If you have the tty open when you hibernate, a new tty will be created when the device re-enumerates during resume. Signed-off-by:
Sarah Sharp <sarah.a.sharp@intel.com> Signed-off-by:
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David Brownell authored
We now have pr_err(), pr_warning(), and friends ... start using them in the gadget stack instead of printk(KERN_ERR) and friends. This gives us shorter lines and somewhat increased readability. Signed-off-by:
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Alan Stern authored
This patch (as1016) prevents PCI-based host controllers from undergoing a power-state change during a FREEZE or a PRETHAW. Such changes are needed only during a SUSPEND. Signed-off-by:
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Alan Stern authored
This patch (as1012b) makes the ksuspend_usbd kernel thread non-freezable. Since the PM core has been changed to lock all devices during a system sleep, the thread no longer needs to be frozen. It won't interfere with a system sleep because before trying to resume a root hub device, it acquires the device's lock. Signed-off-by:
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Julia Lawall authored
Continue is not needed at the bottom of a loop. The semantic patch implementing this change is as follows: @@ @@ for (...;...;...) { ... if (...) { ... - continue; } } Signed-off-by:Julia Lawall <julia@diku.dk> Signed-off-by:
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Robert P. J. Day authored
Given that none of the referenced header files test the proprocessor conditional __KERNEL__, there's no point "unifdef"fing them. Signed-off-by:
Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by:
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Aristeu Rozanski authored
The usb serial method set_termios() is called for the first time from open() method in order to set up the termios structure with the default device's settings, ignoring the current settings. Once it's initialized, the next set_termios() calls will update the device with the tty->termios settings. Currently USB serial console code calls the driver open() method without a tty and after that will allocate a fake tty and termios so the command line arguments can be applied to the device (console=ttyUSB0,115200,...). This makes the driver overwrite the termios with the default settings and not applying the command line options. This patch changes usb_console_setup() to allocate the fake tty and termios before the open() method is called. Tested successfully with a pl2303 Signed-off-by:
Aristeu Rozanski <arozansk@redhat.com> Signed-off-by:
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Aristeu Rozanski authored
When a usb serial adapter is used as console, the usb serial console driver bumps the open_count on the port struct used but doesn't attach a real tty to it (only a fake one temporaly). If this port is opened later using the regular character device interface, the open method won't initialize the port, which is the expected, and will receive a brand new tty struct created by tty layer, which will be stored in port->tty. When the last close is issued, open_count won't be 0 because of the console usage and the port->tty will still contain the old tty value. This is the last ttyUSB<n> close so the allocated tty will be freed by the tty layer. The usb_serial and usb_serial_port are still in use by the console, so port_free() won't be called (serial_close() -> usb_serial_put() -> destroy_serial() -> port_free()), so the scheduled work (port->work, usb_serial_port_work()) will still run. And usb_serial_port_work() does: (...) tty = port->tty; if (!tty) return; tty_wakeup(tty); which causes (manually copied): Faulting instruction address: 0x6b6b6b68 Oops: Kernel access of bad area, sig: 11 [#1] PREEMPT PowerMac Modules linked in: binfmt_misc ipv6 nfs lockd nfs_acl sunrpc dm_snapshot dm_mirror dm_mod hfsplus uinput ams input_polldev genrtc cpufreq_powersave i2c_powermac therm_adt746x snd_aoa_codec_tas snd_aoa_fabric_layout snd_aoa joydev snd_aoa_i2sbus snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc pmac_zilog serial_core evdev ide_cd cdrom snd appletouch soundcore snd_aoa_soundbus bcm43xx firmware_class usbhid ieee80211softmac ff_memless firewire_ohci firewire_core ieee80211 ieee80211_crypt crc_itu_t sungem sungem_phy uninorth_agp agpart ssb NIP: 6b6b6b68 LR: c01b2108 CTR: 6b6b6b6b REGS: c106de80 TRAP: 0400 Not tainted (2.6.24-rc2) MSR: 40009032 <EE,ME,IR,DR> CR: 82004024 XER: 00000000 TASK = c106b4c0[5] 'events/0' THREAD: c106c000 GPR00: 6b6b6b6b c106df30 c106b4c0 c2d613a0 00009032 00000001 00001a00 00000001 GPR08: 00000008 00000000 00000000 c106c000 42004028 00000000 016ffbe0 0171a724 GPR16: 016ffcf4 00240e24 00240e70 016fee68 016ff9a4 c03046c4 c0327f50 c03046fc GPR24: c106b6b9 c106b4c0 c101d610 c106c000 c02160fc c1eac1dc c2d613ac c2d613a0 NIP [6b6b6b68] 0x6b6b6b68 LR [c01b2108] tty_wakeup+0x6c/0x9c Call Trace: [c106df30] [c01b20e8] tty_wakeup+0x4c/0x9c (unreliable) [c106df40] [c0216138] usb_serial_port_work+0x3c/0x78 [c106df50] [c00432e8] run_workqueue+0xc4/0x15c [c106df90] [c0043798] worker_thread+0xa0/0x124 [c106dfd0] [c0048224] kthread+0x48/0x84 [c106dff0] [c00129bc] kernel_thread+0x44/0x60 Instruction dump: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX Slab corruption: size-2048 start=c2d613a0, len=2048 Redzone: 0x9f911029d74e35b/0x9f911029d74e35b. Last user: [<c01b16d8>](release_one_tty+0xbc/0xf4) 050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b Prev obj: start=c2d60b88, len=2048 Redzone: 0x9f911029d74e35b/0x9f911029d74e35b. Last user: [<c00f30ec>](show_stat+0x410/0x428) 000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b This patch avoids this, clearing port->tty considering if the port is used as serial console or not Signed-off-by: -
Aristeu Rozanski authored
Currently usb serial console support ignores the device and always use ttyUSB0. Signed-off-by:
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Oliver Bock authored
here's a minor update to the cypress_cy7c63 driver providing new contact and usage information. From: Oliver Bock <bock@tfh-berlin.de> Signed-off-by: -
Craig W. Nadler authored
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:
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Alan Stern authored
This patch (as1011) adds a #define for the newly-created Lockable (i.e., password-protected) subclass 0x07 for USB mass-storage devices. The private ISD200 entry (which had been mapped to subclass 0x07) is moved to 0xf0, which is unlikely to conflict with any official subclass designation. The US_SC_MIN and US_SC_MAX constants aren't used anywhere, so the patch removes them. Signed-off-by:
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Joe Perches authored
Signed-off-by:
Joe Perches <joe@perches.com> Acked-by:
David Brownell <david-b@pacbell.net> Signed-off-by:
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Yoshihiro Shimoda authored
Add support for SuperH SH7722 USB Function. M66592 is similar to SH7722 USBF. It can support SH7722 USBF by changing several M66592 code. Signed-off-by:
Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Acked-by:
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Matthias Kaehlcke authored
TI 3410/5052 USB Serial: convert semaphore td_open_close_lock to the mutex API. Signed-off-by:
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Kyungmin Park authored
The current omap udc dosen't support the DMA mode and it has some problem at setup time on OMAP2 with previous patch file. I found that the code assumes bulk out required the big data transfer. But MODE SELECT(6) sent the only 24 bytes. it makes a problem. So I implement the small packets handling for it. It is tested with both linux and windows. Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Cc: David Brownell <david-b@pacbell.net> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by:
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Adrian Bunk authored
- make the needlessly global struct mon_fops_binary static - #if 0 the unused mon_bin_mmap() and related code Signed-off-by:
Adrian Bunk <bunk@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Greg KH <greg@kroah.com> Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Jeff Garzik authored
- 'irq' argument is merely used in place of a constant; replace its usage with that constant. Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Cc: David Brownell <david-b@pacbell.net> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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Fernando Luis Vázquez Cao authored
Remove dead code while at it. Signed-off-by:
Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by:
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