This is the contents of some of the drivers/usb/serial/ files that had old changelog comments. They were quite old, and out of date, and we don't keep them anymore, so I've put them here, away from the source files, in case people still care to see them. - Greg Kroah-Hartman October 20, 2005 ----------------------------------------------------------------------- usb-serial.h Change Log comments: (03/26/2002) gkh removed the port->tty check from port_paranoia_check() due to serial consoles not having a tty device assigned to them. (12/03/2001) gkh removed active from the port structure. added documentation to the usb_serial_device_type structure (10/10/2001) gkh added vendor and product to serial structure. Needed to determine device owner when the device is disconnected. (05/30/2001) gkh added sem to port structure and removed port_lock (10/05/2000) gkh Added interrupt_in_endpointAddress and bulk_in_endpointAddress to help fix bug with urb->dev not being set properly, now that the usb core needs it. (09/11/2000) gkh Added usb_serial_debug_data function to help get rid of #DEBUG in the drivers. (08/28/2000) gkh Added port_lock to port structure. (08/08/2000) gkh Added open_count to port structure. (07/23/2000) gkh Added bulk_out_endpointAddress to port structure. (07/19/2000) gkh, pberger, and borchers Modifications to allow usb-serial drivers to be modules. ----------------------------------------------------------------------- usb-serial.c Change Log comments: (12/10/2002) gkh Split the ports off into their own struct device, and added a usb-serial bus driver. (11/19/2002) gkh removed a few #ifdefs for the generic code and cleaned up the failure logic in initialization. (10/02/2002) gkh moved the console code to console.c and out of this file. (06/05/2002) gkh moved location of startup() call in serial_probe() until after all of the port information and endpoints are initialized. This makes things easier for some drivers. (04/10/2002) gkh added serial_read_proc function which creates a /proc/tty/driver/usb-serial file. (03/27/2002) gkh Got USB serial console code working properly and merged into the main version of the tree. Thanks to Randy Dunlap for the initial version of this code, and for pushing me to finish it up. The USB serial console works with any usb serial driver device. (03/21/2002) gkh Moved all manipulation of port->open_count into the core. Now the individual driver's open and close functions are called only when the first open() and last close() is called. Making the drivers a bit smaller and simpler. Fixed a bug if a driver didn't have the owner field set. (02/26/2002) gkh Moved all locking into the main serial_* functions, instead of having the individual drivers have to grab the port semaphore. This should reduce races. Reworked the MOD_INC logic a bit to always increment and decrement, even if the generic driver is being used. (10/10/2001) gkh usb_serial_disconnect() now sets the serial->dev pointer is to NULL to help prevent child drivers from accessing the device since it is now gone. (09/13/2001) gkh Moved generic driver initialize after we have registered with the USB core. Thanks to Randy Dunlap for pointing this problem out. (07/03/2001) gkh Fixed module paramater size. Thanks to John Brockmeyer for the pointer. Fixed vendor and product getting defined through the MODULE_PARM macro if the Generic driver wasn't compiled in. Fixed problem with generic_shutdown() not being called for drivers that don't have a shutdown() function. (06/06/2001) gkh added evil hack that is needed for the prolific pl2303 device due to the crazy way its endpoints are set up. (05/30/2001) gkh switched from using spinlock to a semaphore, which fixes lots of problems. (04/08/2001) gb Identify version on module load. 2001_02_05 gkh Fixed buffer overflows bug with the generic serial driver. Thanks to Todd Squires for fixing this. (01/10/2001) gkh Fixed bug where the generic serial adaptor grabbed _any_ device that was offered to it. (12/12/2000) gkh Removed MOD_INC and MOD_DEC from poll and disconnect functions, and moved them to the serial_open and serial_close functions. Also fixed bug with there not being a MOD_DEC for the generic driver (thanks to Gary Brubaker for finding this.) (11/29/2000) gkh Small NULL pointer initialization cleanup which saves a bit of disk image (11/01/2000) Adam J. Richter instead of using idVendor/idProduct pairs, usb serial drivers now identify their hardware interest with usb_device_id tables, which they usually have anyhow for use with MODULE_DEVICE_TABLE. (10/05/2000) gkh Fixed bug with urb->dev not being set properly, now that the usb core needs it. (09/11/2000) gkh Removed DEBUG #ifdefs with call to usb_serial_debug_data (08/28/2000) gkh Added port_lock to port structure. Added locks for SMP safeness to generic driver Fixed the ability to open a generic device's port more than once. (07/23/2000) gkh Added bulk_out_endpointAddress to port structure. (07/19/2000) gkh, pberger, and borchers Modifications to allow usb-serial drivers to be modules. (07/03/2000) gkh Added more debugging to serial_ioctl call (06/25/2000) gkh Changed generic_write_bulk_callback to not call wake_up_interruptible directly, but to have port_softint do it at a safer time. (06/23/2000) gkh Cleaned up debugging statements in a quest to find UHCI timeout bug. (05/22/2000) gkh Changed the makefile, enabling the big CONFIG_USB_SERIAL_SOMTHING to be removed from the individual device source files. (05/03/2000) gkh Added the Digi Acceleport driver from Al Borchers and Peter Berger. (05/02/2000) gkh Changed devfs and tty register code to work properly now. This was based on the ACM driver changes by Vojtech Pavlik. (04/27/2000) Ryan VanderBijl Put calls to *_paranoia_checks into one function. (04/23/2000) gkh Fixed bug that Randy Dunlap found for Generic devices with no bulk out ports. Moved when the startup code printed out the devices that are supported. (04/19/2000) gkh Added driver for ZyXEL omni.net lcd plus ISDN TA Made startup info message specify which drivers were compiled in. (04/03/2000) gkh Changed the probe process to remove the module unload races. Changed where the tty layer gets initialized to have devfs work nicer. Added initial devfs support. (03/26/2000) gkh Split driver up into device specific pieces. (03/19/2000) gkh Fixed oops that could happen when device was removed while a program was talking to the device. Removed the static urbs and now all urbs are created and destroyed dynamically. Reworked the internal interface. Now everything is based on the usb_serial_port structure instead of the larger usb_serial structure. This fixes the bug that a multiport device could not have more than one port open at one time. (03/17/2000) gkh Added config option for debugging messages. Added patch for keyspan pda from Brian Warner. (03/06/2000) gkh Added the keyspan pda code from Brian Warner Moved a bunch of the port specific stuff into its own structure. This is in anticipation of the true multiport devices (there's a bug if you try to access more than one port of any multiport device right now) (02/21/2000) gkh Made it so that any serial devices only have to specify which functions they want to overload from the generic function calls (great, inheritance in C, in a driver, just what I wanted...) Added support for set_termios and ioctl function calls. No drivers take advantage of this yet. Removed the #ifdef MODULE, now there is no module specific code. Cleaned up a few comments in usb-serial.h that were wrong (thanks again to Miles Lott). Small fix to get_free_serial. (02/14/2000) gkh Removed the Belkin and Peracom functionality from the driver due to the lack of support from the vendor, and me not wanting people to accidenatly buy the device, expecting it to work with Linux. Added read_bulk_callback and write_bulk_callback to the type structure for the needs of the FTDI and WhiteHEAT driver. Changed all reverences to FTDI to FTDI_SIO at the request of Bill Ryder. Changed the output urb size back to the max endpoint size to make the ftdi_sio driver have it easier, and due to the fact that it didn't really increase the speed any. (02/11/2000) gkh Added VISOR_FUNCTION_CONSOLE to the visor startup function. This was a patch from Miles Lott (milos@insync.net). Fixed bug with not restoring the minor range that a device grabs, if the startup function fails (thanks Miles for finding this). (02/05/2000) gkh Added initial framework for the Keyspan PDA serial converter so that Brian Warner has a place to put his code. Made the ezusb specific functions generic enough that different devices can use them (whiteheat and keyspan_pda both need them). Split out a whole bunch of structure and other stuff to a separate usb-serial.h file. Made the Visor connection messages a little more understandable, now that Miles Lott (milos@insync.net) has gotten the Generic channel to work. Also made them always show up in the log file. (01/25/2000) gkh Added initial framework for FTDI serial converter so that Bill Ryder has a place to put his code. Added the vendor specific info from Handspring. Now we can print out informational debug messages as well as understand what is happening. (01/23/2000) gkh Fixed problem of crash when trying to open a port that didn't have a device assigned to it. Made the minor node finding a little smarter, now it looks to find a continuous space for the new device. (01/21/2000) gkh Fixed bug in visor_startup with patch from Miles Lott (milos@insync.net) Fixed get_serial_by_minor which was all messed up for multi port devices. Fixed multi port problem for generic devices. Now the number of ports is determined by the number of bulk out endpoints for the generic device. (01/19/2000) gkh Removed lots of cruft that was around from the old (pre urb) driver interface. Made the serial_table dynamic. This should save lots of memory when the number of minor nodes goes up to 256. Added initial support for devices that have more than one port. Added more debugging comments for the Visor, and added a needed set_configuration call. (01/17/2000) gkh Fixed the WhiteHEAT firmware (my processing tool had a bug) and added new debug loader firmware for it. Removed the put_char function as it isn't really needed. Added visor startup commands as found by the Win98 dump. (01/13/2000) gkh Fixed the vendor id for the generic driver to the one I meant it to be. (01/12/2000) gkh Forget the version numbering...that's pretty useless... Made the driver able to be compiled so that the user can select which converter they want to use. This allows people who only want the Visor support to not pay the memory size price of the WhiteHEAT. Fixed bug where the generic driver (idVendor=0000 and idProduct=0000) grabbed the root hub. Not good. version 0.4.0 (01/10/2000) gkh Added whiteheat.h containing the firmware for the ConnectTech WhiteHEAT device. Added startup function to allow firmware to be downloaded to a device if it needs to be. Added firmware download logic to the WhiteHEAT device. Started to add #defines to split up the different drivers for potential configuration option. version 0.3.1 (12/30/99) gkh Fixed problems with urb for bulk out. Added initial support for multiple sets of endpoints. This enables the Handspring Visor to be attached successfully. Only the first bulk in / bulk out endpoint pair is being used right now. version 0.3.0 (12/27/99) gkh Added initial support for the Handspring Visor based on a patch from Miles Lott (milos@sneety.insync.net) Cleaned up the code a bunch and converted over to using urbs only. version 0.2.3 (12/21/99) gkh Added initial support for the Connect Tech WhiteHEAT converter. Incremented the number of ports in expectation of getting the WhiteHEAT to work properly (4 ports per connection). Added notification on insertion and removal of what port the device is/was connected to (and what kind of device it was). version 0.2.2 (12/16/99) gkh Changed major number to the new allocated number. We're legal now! version 0.2.1 (12/14/99) gkh Fixed bug that happens when device node is opened when there isn't a device attached to it. Thanks to marek@webdesign.no for noticing this. version 0.2.0 (11/10/99) gkh Split up internals to make it easier to add different types of serial converters to the code. Added a "generic" driver that gets it's vendor and product id from when the module is loaded. Thanks to David E. Nelson (dnelson@jump.net) for the idea and sample code (from the usb scanner driver.) Cleared up any licensing questions by releasing it under the GNU GPL. version 0.1.2 (10/25/99) gkh Fixed bug in detecting device. version 0.1.1 (10/05/99) gkh Changed the major number to not conflict with anything else. version 0.1 (09/28/99) gkh Can recognize the two different devices and start up a read from device when asked to. Writes also work. No control signals yet, this all is vendor specific data (i.e. no spec), also no control for different baud rates or other bit settings. Currently we are using the same devid as the acm driver. This needs to change. ----------------------------------------------------------------------- visor.c Change Log comments: (06/03/2003) Judd Montgomery Added support for module parameter options for untested/unknown devices. (03/09/2003) gkh Added support for the Sony Clie NZ90V device. Thanks to Martin Brachtl for the information. (03/05/2003) gkh Think Treo support is now working. (04/03/2002) gkh Added support for the Sony OS 4.1 devices. Thanks to Hiroyuki ARAKI for the information. (03/27/2002) gkh Removed assumptions that port->tty was always valid (is not true for usb serial console devices.) (03/23/2002) gkh Added support for the Palm i705 device, thanks to Thomas Riemer for the information. (03/21/2002) gkh Added support for the Palm m130 device, thanks to Udo Eisenbarth for the information. (02/27/2002) gkh Reworked the urb handling logic. We have no more pool, but dynamically allocate the urb and the transfer buffer on the fly. In testing this does not incure any measurable overhead. This also relies on the fact that we have proper reference counting logic for urbs. (02/21/2002) SilaS Added initial support for the Palm m515 devices. (02/14/2002) gkh Added support for the Clie S-360 device. (12/18/2001) gkh Added better Clie support for 3.5 devices. Thanks to Geoffrey Levand for the patch. (11/11/2001) gkh Added support for the m125 devices, and added check to prevent oopses for Clié devices that lie about the number of ports they have. (08/30/2001) gkh Added support for the Clie devices, both the 3.5 and 4.0 os versions. Many thanks to Daniel Burke, and Bryan Payne for helping with this. (08/23/2001) gkh fixed a few potential bugs pointed out by Oliver Neukum. (05/30/2001) gkh switched from using spinlock to a semaphore, which fixes lots of problems. (05/28/2000) gkh Added initial support for the Palm m500 and Palm m505 devices. (04/08/2001) gb Identify version on module load. (01/21/2000) gkh Added write_room and chars_in_buffer, as they were previously using the generic driver versions which is all wrong now that we are using an urb pool. Thanks to Wolfgang Grandegger for pointing this out to me. Removed count assignment in the write function, which was not needed anymore either. Thanks to Al Borchers for pointing this out. (12/12/2000) gkh Moved MOD_DEC to end of visor_close to be nicer, as the final write message can sleep. (11/12/2000) gkh Fixed bug with data being dropped on the floor by forcing tty->low_latency to be on. Hopefully this fixes the OHCI issue! (11/01/2000) Adam J. Richter usb_device_id table support (10/05/2000) gkh Fixed bug with urb->dev not being set properly, now that the usb core needs it. (09/11/2000) gkh Got rid of always calling kmalloc for every urb we wrote out to the device. Added visor_read_callback so we can keep track of bytes in and out for those people who like to know the speed of their device. Removed DEBUG #ifdefs with call to usb_serial_debug_data (09/06/2000) gkh Fixed oops in visor_exit. Need to uncomment usb_unlink_urb call _after_ the host controller drivers set urb->dev = NULL when the urb is finished. (08/28/2000) gkh Added locks for SMP safeness. (08/08/2000) gkh Fixed endian problem in visor_startup. Fixed MOD_INC and MOD_DEC logic and the ability to open a port more than once. (07/23/2000) gkh Added pool of write urbs to speed up transfers to the visor. (07/19/2000) gkh Added module_init and module_exit functions to handle the fact that this driver is a loadable module now. (07/03/2000) gkh Added visor_set_ioctl and visor_set_termios functions (they don't do much of anything, but are good for debugging.) (06/25/2000) gkh Fixed bug in visor_unthrottle that should help with the disconnect in PPP bug that people have been reporting. (06/23/2000) gkh Cleaned up debugging statements in a quest to find UHCI timeout bug. (04/27/2000) Ryan VanderBijl Fixed memory leak in visor_close (03/26/2000) gkh Split driver up into device specific pieces. ----------------------------------------------------------------------- pl2303.c Change Log comments: 2002_Mar_26 gkh allowed driver to work properly if there is no tty assigned to a port (this happens for serial console devices.) 2001_Oct_06 gkh Added RTS and DTR line control. Thanks to joe@bndlg.de for parts of it. 2001_Sep_19 gkh Added break support. 2001_Aug_30 gkh fixed oops in write_bulk_callback. 2001_Aug_28 gkh reworked buffer logic to be like other usb-serial drivers. Hopefully removing some reported problems. 2001_Jun_06 gkh finished porting to 2.4 format. ----------------------------------------------------------------------- io_edgeport.c Change Log comments: 2003_04_03 al borchers - fixed a bug (that shows up with dosemu) where the tty struct is used in a callback after it has been freed 2.3 2002_03_08 greg kroah-hartman - fixed bug when multiple devices were attached at the same time. 2.2 2001_11_14 greg kroah-hartman - fixed bug in edge_close that kept the port from being used more than once. - fixed memory leak on device removal. - fixed potential double free of memory when command urb submitting failed. - other small cleanups when the device is removed 2.1 2001_07_09 greg kroah-hartman - added support for TIOCMBIS and TIOCMBIC. (04/08/2001) gb - Identify version on module load. 2.0 2001_03_05 greg kroah-hartman - reworked entire driver to fit properly in with the other usb-serial drivers. Occasional oopses still happen, but it's a good start. 1.2.3 (02/23/2001) greg kroah-hartman - changed device table to work properly for 2.4.x final format. - fixed problem with dropping data at high data rates. 1.2.2 (11/27/2000) greg kroah-hartman - cleaned up more NTisms. - Added device table for 2.4.0-test11 1.2.1 (11/08/2000) greg kroah-hartman - Started to clean up NTisms. - Fixed problem with dev field of urb for kernels >= 2.4.0-test9 1.2 (10/17/2000) David Iacovelli Remove all EPIC code and GPL source Fix RELEVANT_IFLAG macro to include flow control changes port configuration changes. Fix redefinition of SERIAL_MAGIC Change all timeout values to 5 seconds Tried to fix the UHCI multiple urb submission, but failed miserably. it seems to work fine with OHCI. ( Greg take a look at the #if 0 at end of WriteCmdUsb() we must find a way to work arount this UHCI bug ) 1.1 (10/11/2000) David Iacovelli Fix XON/XOFF flow control to support both IXON and IXOFF 0.9.27 (06/30/2000) David Iacovelli Added transmit queue and now allocate urb for command writes. 0.9.26 (06/29/2000) David Iacovelli Add support for 80251 based edgeport 0.9.25 (06/27/2000) David Iacovelli Do not close the port if it has multiple opens. 0.9.24 (05/26/2000) David Iacovelli Add IOCTLs to support RXTX and JAVA POS and first cut at running BlackBox Demo 0.9.23 (05/24/2000) David Iacovelli Add IOCTLs to support RXTX and JAVA POS 0.9.22 (05/23/2000) David Iacovelli fixed bug in enumeration. If epconfig turns on mapping by path after a device is already plugged in, we now update the mapping correctly 0.9.21 (05/16/2000) David Iacovelli Added BlockUntilChaseResp() to also wait for txcredits Updated the way we allocate and handle write URBs Add debug code to dump buffers 0.9.20 (05/01/2000) David Iacovelli change driver to use usb/tts/ 0.9.19 (05/01/2000) David Iacovelli Update code to compile if DEBUG is off 0.9.18 (04/28/2000) David Iacovelli cleanup and test tty_register with devfs 0.9.17 (04/27/2000) greg kroah-hartman changed tty_register around to be like the way it was before, but now it works properly with devfs. 0.9.16 (04/26/2000) david iacovelli Fixed bug in GetProductInfo() 0.9.15 (04/25/2000) david iacovelli Updated enumeration 0.9.14 (04/24/2000) david iacovelli Removed all config/status IOCTLS and converted to using /proc/edgeport still playing with devfs 0.9.13 (04/24/2000) david iacovelli Removed configuration based on ttyUSB0 Added support for configuration using /prod/edgeport first attempt at using devfs (not working yet!) Added IOCTL to GetProductInfo() Added support for custom baud rates Add support for random port numbers 0.9.12 (04/18/2000) david iacovelli added additional configuration IOCTLs use ttyUSB0 for configuration 0.9.11 (04/17/2000) greg kroah-hartman fixed module initialization race conditions. made all urbs dynamically allocated. made driver devfs compatible. now it only registers the tty device when the device is actually plugged in. 0.9.10 (04/13/2000) greg kroah-hartman added proc interface framework. 0.9.9 (04/13/2000) david iacovelli added enumeration code and ioctls to configure the device 0.9.8 (04/12/2000) david iacovelli Change interrupt read start when device is plugged in and stop when device is removed process interrupt reads when all ports are closed (keep value of rxBytesAvail consistent with the edgeport) set the USB_BULK_QUEUE flag so that we can shove a bunch of urbs at once down the pipe 0.9.7 (04/10/2000) david iacovelli start to add enumeration code. generate serial number for epic devices add support for kdb 0.9.6 (03/30/2000) david iacovelli add IOCTL to get string, manufacture, and boot descriptors 0.9.5 (03/14/2000) greg kroah-hartman more error checking added to SerialOpen to try to fix UHCI open problem 0.9.4 (03/09/2000) greg kroah-hartman added more error checking to handle oops when data is hanging around and tty is abruptly closed. 0.9.3 (03/09/2000) david iacovelli Add epic support for xon/xoff chars play with performance 0.9.2 (03/08/2000) greg kroah-hartman changed most "info" calls to "dbg" implemented flow control properly in the termios call 0.9.1 (03/08/2000) david iacovelli added EPIC support enabled bootloader update 0.9 (03/08/2000) greg kroah-hartman Release to IO networks. Integrated changes that David made made getting urbs for writing SMP safe 0.8 (03/07/2000) greg kroah-hartman Release to IO networks. Fixed problems that were seen in code by David. Now both Edgeport/4 and Edgeport/2 works properly. Changed most of the functions to use port instead of serial. 0.7 (02/27/2000) greg kroah-hartman Milestone 3 release. Release to IO Networks ioctl for waiting on line change implemented. ioctl for getting statistics implemented. multiport support working. lsr and msr registers are now handled properly. change break now hooked up and working. support for all known Edgeport devices. 0.6 (02/22/2000) greg kroah-hartman Release to IO networks. CHASE is implemented correctly when port is closed. SerialOpen now blocks correctly until port is fully opened. 0.5 (02/20/2000) greg kroah-hartman Release to IO networks. Known problems: modem status register changes are not sent on to the user CHASE is not implemented when the port is closed. 0.4 (02/16/2000) greg kroah-hartman Second cut at the CeBit demo. Doesn't leak memory on every write to the port Still small leaks on startup. Added support for Edgeport/2 and Edgeport/8 0.3 (02/15/2000) greg kroah-hartman CeBit demo release. Force the line settings to 4800, 8, 1, e for the demo. Warning! This version leaks memory like crazy! 0.2 (01/30/2000) greg kroah-hartman Milestone 1 release. Device is found by USB subsystem, enumerated, firmware is downloaded and the descriptors are printed to the debug log, config is set, and green light starts to blink. Open port works, and data can be sent and received at the default settings of the UART. Loopback connector and debug log confirms this. 0.1 (01/23/2000) greg kroah-hartman Initial release to help IO Networks try to set up their test system. Edgeport4 is recognized, firmware is downloaded, config is set so device blinks green light every 3 sec. Port is bound, but opening, closing, and sending data do not work properly.