- 16 Jun, 2009 40 commits
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Alan Stern authored
This patch (as1245) fixes a bug in ehci-hcd. When an URB is queued for an endpoint whose QH is already in the LINKED state, the QH doesn't get refreshed. As a result, if usb_clear_halt() was called during the time that the QH was linked but idle, the data toggle value in the QH doesn't get reset. The symptom is that after a clear_halt, data gets lost and transfers time out. This problem is starting to show up now because the "ehci-hcd unlink speedups" patch causes QHs with no queued URBs to remain linked for a suitable time. The patch utilizes the new endpoint_reset mechanism to fix the problem. When an endpoint is reset, the new method forcibly unlinks the QH (if necessary) and safely updates the toggle value. This allows qh_update() to be simplified and avoids using usb_device's toggle bits in a rather unintuitive way. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Tested-by:
David <david@unsolicited.net> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
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Yoshihiro Shimoda authored
CPU/board specific parameters (PLL clock, vif etc...) can be set by platform_data instead of module_param. v2: remove irq_sense member in platform_data because it can OR in IRQF_TRIGGER_LOW or IRQF_TRIGGER_FALLING against IORESOURCE_IRQ in the struct resource. Signed-off-by:Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Reviewed-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
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Josua Dietze authored
Some unusual usb devices from the maker "Option" are switched from storage to serial/modem mode by sending a SCSI REZERO command. In one case a fairly common vendor/device ID is affected which led to problems for users of other modems or phones which are not supposed to be switched. The patch adds a filter by reading the vendor name with the SCSI INQUIRY command, and skips the switching code for all unrecognized entries. Further changes are cleanups and corrections pointed out by Alan Stern. Tested with two devices with the IDs 05c6:1000, one from "Option" and switchable, and one from Samsung (cell phone). Signed-off-by:
Josua Dietze <digidietze@draisberghof.de> Acked-by:
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Alan Stern authored
This patch (as1243) tries to improve ehci-hcd's scheduling of interrupt transfers. Instead of trying to cram all transfers with the same period into the same frame, the new code will spread the transfers out among lots of different frames. This should reduce the periodic schedule load in any one frame -- some host controllers have trouble when there's too much work to do. A more thorough approach would stagger the uframe values as well. But this is enough to make a big improvement. Signed-off-by:
Dwayne Fontenot <dwayne.fontenot@att.net> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
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Alan Stern authored
This patch (as1242) fixes the return values from the special init functions in usb-storage. They are supposed to return 0 for success, not USB_STOR_TRANSPORT_GOOD. Signed-off-by:
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Niilo Minkkinen authored
Omap3 MUSB AUTOIDLE functionality configured through OTG_SYSCONFIG register prevents the device from going into retention. This is a workaround (by Richard Woodruff/TI), as his comment : > A new MUSB bug which is a match to data below was identified very > recently (on hardware and in simulation). > This bug is in 3430 and not 3630. > As a priority test (and as new default) you should have engineers > disable autoidle for MUSB block. > This is the workaround which will show up in next errata. Signed-off-by:
Niilo Minkkinen <ext-niilo.1.minkkinen@nokia.com> Signed-off-by:
Richard Woodruff <r-woodruff2@ti.com> Signed-off-by:
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Oliver Neukum authored
This implement support in cdc-acm for acm devices another popular OS can handle - adds support for autodetection of devices that use one interface - autodetection of endpoints - add a quirk for surpressing a setting that OS doesn't use - autoassume that quirk for single interface devices Signed-off-by:
Oliver Neukum <oliver@neukum.org> Signed-off-by:
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Andrew Morton authored
drivers/usb/serial/sierra.c: In function 'sierra_write': drivers/usb/serial/sierra.c:375: warning: format '%d' expects type 'int', but argument 5 has type 'size_t' Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Cc: Elina Pasheva <epasheva@sierrawireless.com> Cc: Rory Filer <rfiler@SierraWireless.com> Signed-off-by:
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Daniel Mack authored
cppcheck found another leak in drivers/usb/gadget/imx_udc.c Cc: Mike Lee <eemike@gmail.com> Cc: Darius Augulis <augulis.darius@gmail.com> Signed-off-by:
Daniel Mack <daniel@caiaq.de> Cc: David Brownell <david-b@pacbell.net> Signed-off-by:
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Kay Sievers authored
The endpoint devices look like simple attribute groups now, and no longer like devices with a specific subsystem. They will also no longer emit uevents. It also removes the device node requests for endpoint devices, which are not implemented for now. Signed-off-by:
Kay Sievers <kay.sievers@vrfy.org> Acked-by:
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Elina Pasheva authored
- Removed potential kernel oops from sierra_calc_num_ports() function. Calling this function twice would likely have caused an oops because the function releases allocated memory after the first call. - Modified sierra_probe() function to reflect the changes in sierra_calc_num_ports(). Signed-off-by:
Elina Pasheva <epasheva@sierrawireless.com> Signed-off-by:
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Elina Pasheva authored
- Fixed a problem when re-submitting urb from interrupt callback in function sierra_instat_callback(). This suppresses also issuing of error messages in /var/log/kern.log - Removed redundant debug message at the beginning of sierra_instat_callback() function - Changed a debug message to be an error message Signed-off-by:
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Elina Pasheva authored
- Fixed a problem with transferring packets with size a multiple of Bulk Xfer size in function sierra_write(). Added transfer flag URB_ZERO_PACKET before submitting the urb to trigger Zero-length data transfer when packet size is a multiple of Bulk Xfer. Signed-off-by:
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Jason Wessel authored
Change driver to make use of the new functions in include/linux/usb/serial.h so as to allow the driver to handle the sysrq Signed-off-by:
Jason Wessel <jason.wessel@windriver.com> Signed-off-by:
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Jason Wessel authored
The usb_debug driver was modified to implement serial break handling by using a "magic" data packet comprised of the sequence: 0x00 0xff 0x01 0xfe 0x00 0xfe 0x01 0xff When the tty layer requests a serial break the usb_debug driver sends the magic packet. On the receiving side the magic packet is thrown away or a sysrq is activated depending on what kernel .config options have been set. The generic serial driver was modified as well as the usb serial headers to generically implement sysrq processing in the same way the non usb uart based drivers implement the sysrq handling. This will allow other usb serial devices to implement sysrq handling as desired. The new usb serial functions are named similarly and implemented similarly to the uart functions as follows: usb_serial_handle_break <-> uart_handle_break usb_serial_handle_sysrq_char <-> uart_handle_sysrq_char Signed-off-by: -
Jason Wessel authored
Alan Stern commented that the private driver counts must be updated regard less of the status return on the urb when the write call back is executed. This patch alters the behavior to update the private driver counts by simply moving the status check to after the driver count update. Signed-off-by:
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Jason Wessel authored
The usb_debug driver, when used as the console, will always fail to insert the carriage return and new line sequence as well as randomly drop console output. This is a result of only having the single write_urb and that the tty layer will have a lock that prevents the processing of the back to back urb requests. The solution is to allow more than one urb to be outstanding and have a slightly deeper transmit queue. The idea and some code is borrowed from the ftdi_sio usb driver. The generic usb serial driver was modified so as to allow the classic method of 1 write urb, or a multi write urb scheme with N allowed outstanding urbs where N is controlled by max_in_flight_urbs. When max_in_flight_urbs in a "struct usb_serial_driver" is non zero the multi write urb scheme will be used. The size of 4000 was selected for the usb_debug driver so that the driver lowers possibility of losing the queued console messages during the kernel startup. Signed-off-by:
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Elina Pasheva authored
This patch fixes a problem in function sierra_indat_callback() which would stop receiving traffic from a modem if a number of URB failures occur. Failed URBs are not resubmitted for the next read and there is only a limited number of URBs allocated for the IN path. After this number of failures, the receive path stops working on a particular interface. Signed-off-by: -
Elina Pasheva authored
- Updated Copyright notice with new authors names - Version number set to 1.3.6 - Added a MAX_TRANSFER constant following Greg Kroah-Hartman's recommended setting of PAGE_SIZE-512 for USB transfer buffers and modified accordingly sierra_write() function. Signed-off-by:
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Pete Zaitcev authored
We all know that pointless janitoring is bad, but this code is just offensive. So: - The error code goes directly to probe return, so don't return -1. - Don't return return internal usb-storage codes either. - usb_stor_control_msg takes timeout in milliseconds. - Sanitize messages. Signed-off-by:
Pete Zaitcev <zaitcev@redhat.com> Signed-off-by:
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Randy Dunlap authored
Use "/* private:" to mark struct members as private so that scripts/kernel-doc will handle them correctly. Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Acked-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Randy Dunlap authored
Mark internal struct members as /* private: */ so that kernel-doc won't produce warnings about missing descriptions for them. Signed-off-by:
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Paul Mundt authored
CC drivers/usb/host/hwa-hc.o drivers/usb/host/hwa-hc.c:601: warning: initialization from incompatible pointer type drivers/usb/host/hwa-hc.c:602: warning: initialization from incompatible pointer type The prototype for these changed, so the message itself was dropped. As the only thing these hooks were doing was printing out the message for debugging, there is not much point in keeping them around. So, just kill them off. Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by:
David Vrabel <david.vrabel@csr.com> Signed-off-by:
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Hermann Kneissel authored
The following patch removes the call to usb_reset_device which may occur when closing the driver by implementing a new session initialization code based on the method used by gpsbabel. The patch is against linux-2.6.30-rc3-git1. Signed-off-by: Hermann Kneissel herkne@users.sourceforge.net Signed-off-by: -
Richard Laager authored
Identify the Novatel MC760/U760/USB760 in the option USB serial driver. Signed-off-by:
Richard Laager <rlaager@wiktel.com> Signed-off-by:
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Alan Stern authored
This patch (as1237) changes the way the PCI host controller drivers avoid retaining bogus hardware states during resume-from-hibernation. Previously we had reset the hardware as part of preparing to reinstate the memory image. But we can do better now with the new PM framework, since we know exactly which resume operations are from hibernation. The pci_resume method is changed to accept a flag indicating whether the system is resuming from hibernation. When this flag is set, the drivers will reset the hardware to get rid of any existing state. Similarly, the pci_suspend method is changed to remove the pm_message_t argument. It's no longer needed, since no special action has to be taken when preparing to reinstate the memory image. Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
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Alan Stern authored
This patch (as1236) converts the USB PCI power management routines over to the new PM framework. Signed-off-by:
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Alan Stern authored
This patch (as1235) adds an array of PCI power-state names, together with a simple inline accessor routine. Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Alan Stern authored
This patch (as1233) makes g_file_storage use the "unaligned" accessors. This is based on work originally done by Harvey Harrison. Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Acked-by:
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Elina Pasheva authored
- Version number set to 1.3.5 - Added "\n" at the end of each string in dev_dbg() code to improve the debug information visibility. Without this change the debug logs are very difficult to read. Signed-off-by:
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Elina Pasheva authored
- Version number set to 1.3.4 - Increased the number of input/output URBs for improved performance (numbers based on an measurement study triggered by a user request). We performed the testing using a network simulator that provided full speeds in the uplink and downlink directions and this combination of URBs provided the best throughput. Signed-off-by:
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Greg Kroah-Hartman authored
The usb_host class isn't used for anything anymore (it was used for debug files, but they have moved to debugfs a few kernel releases ago), so let's delete it before someone accidentally puts a file in it. Signed-off-by: -
Greg Kroah-Hartman authored
The controller device is where we want this sysfs file, especially as the dev pointer is about to go away... Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: -
Greg Kroah-Hartman authored
Right now we jump through some hoops to get to the struct ohci_hcd struct in the ohci debugfs files. Remove all of the fun casting around and just use the pointer directly. This is needed as the dev pointer in the hcd structure is going away, and it makes the code simpler and smaller Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: -
Alan Stern authored
This patch (as1239) updates the kernel's treatment of Unicode. The character-set conversion routines are well behind the current state of the Unicode specification: They don't recognize the existence of code points beyond plane 0 or of surrogate pairs in the UTF-16 encoding. The old wchar_t 16-bit type is retained because it's still used in lots of places. This shouldn't cause any new problems; if a conversion now results in an invalid 16-bit code then before it must have yielded an undefined code. Difficult-to-read names like "utf_mbstowcs" are replaced with more transparent names like "utf8s_to_utf16s" and the ordering of the parameters is rationalized (buffer lengths come immediate after the pointers they refer to, and the inputs precede the outputs). Fortunately the low-level conversion routines are used in only a few places; the interfaces to the higher-level uni2char and char2uni methods have been left unchanged. Signed-off-by:
Clemens Ladisch <clemens@ladisch.de> Signed-off-by:
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Clemens Ladisch authored
Change the encoding of strings returned by usb_string() from ISO 8859-1 to UTF-8. Signed-off-by:
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Clemens Ladisch authored
utf8_wcstombs forgot to include one-byte UTF-8 characters when calculating the output buffer size, i.e., theoretically, it was possible to overflow the output buffer with an input string that contains enough ASCII characters. In practice, this was no problem because the only user so far (VFAT) always uses a big enough output buffer. Signed-off-by:
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Clemens Ladisch authored
When utf8_wcstombs encounters a character that cannot be encoded, we must not decrease the remaining output buffer size because nothing has been written to the output buffer. Signed-off-by:
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Greg Kroah-Hartman authored
People are very used to the devices file in usbfs. Now that we have moved usbfs to be an "embedded" option only, the developers miss the file, they had grown quite attached to it over all of these years. This patch brings it back and puts it in the usb debugfs directory, so that the developers don't feel sad anymore. Signed-off-by: -
Greg Kroah-Hartman authored
All usb debugfs files should be behind the usb directory, not at the root of debugfs. Signed-off-by:
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