root/i2c/branches/lk2-4/CHANGES @ 3791

i2c CHANGES file
-----------------------
This is a list of the most important changes between 2.x versions. It is by
no means complete, listing only user-visible changes which are interesting.
The ultimate way to know what has changed is to run diff, or even neater,
ask CVS about it:

  * Checkout the archive (see doc/cvs for how you can do this)
  * Determine which tags are valid, by running this command from the
    project root directory:
      cvs status -v -l Makefile
    Valid tags are usually like form V2-1-0 for version 2.1.0
  * Ask cvs for the difference between two versions:
      cvs diff -r TAG1 -r TAG2 DIFF-OPTIONS
    for example:
      cvs diff -r V2-0-0 -r V2-0-1 -u

-----------------------------------------------------------------------------

2.8.0 (2003????)
  drivers (several): make spinlock_t's static
  i2c-algo-biths.[ch]: Rewrite of i2c-algo-bit with improved bus timing and
           error handling. This is not a drop-in replacement for i2c-algo-bit.
           Interface subject to change.
  i2c-id.h: add IDs for i2c-algo-biths, W83627HF, LM85, nForce2, OMAHA, GUIDE,
            MPC107, IXP2000, IXP425, IOP3XX, UDA1342, S3VIA
  i2c-proc.c: Fix ignore and probe tests
  i2c.h: Add fields for detailed delivery report in i2c_msg.

2.7.0 (20021208)
  drivers (several): C99 initializers (sync w/ kernel 2.5.49); HZ fixes
  i2c.h: Add I2C_M_IGNORE_NAK, I2C_M_NO_RD_ACK to flags.
  i2c-algo-bit.c: Support I2C_M_IGNORE_NAK. Use time_after() with jiffies.
           Debug message improvements. Fix clock high time in sclhi().
  i2c-algo-8xx.c: Several updates and cleanups
  i2c-algo-ibm_ocp.[ch], i2c-adap-ibm_ocp.c: Rename i2c_iic_[add,del]_bus to
           i2c_ocp... to avoid duplicate with i2c-algo-ite in kernel
  i2c-core.c: Fix emulated i2c block writes
  i2c-dev.c: Remove data copy limit
  i2c-id.h: Add driver IDs for smart battery, IPMI, BMC, FS451, AMD8111,
            SCx200
  i2c-proc.h: Add SENSORS_INSMOD_8; add naming for new dummy adapters
  mkpatch: Fix export-objs
  doc/i2c-protocol: Comment new client flags, fix I2C_M_NOSTART samples.
  Makefile: Take kernel source location from /lib/modules/x.x.x/build;
            add flags for x86_64 compiles

2.6.5 (20020915)
  mkpatch: Fix i2c-algo-8xx.o target causing kernel to not compile;
           add doc/i2c-old-porting, i2c-algo-8xx.[ch], i2c-adap-ibm_ocp.c,
           i2c-algo-ibm_ocp.[ch], i2c-frodo, i2c-rpx,
           i2c-pport, i2c-pcf-epp.
  i2c-adap-ibm_ocp.c, i2c-elektor.c, i2c-pcf-epp.c : Replaced deprecated cli()
           and sti() with spin_lock_irq(&driver_lock); and 
           spin_unlock_irq(&driver_lock);  Added spinlock_t driver_lock =
           SPIN_LOCK_UNLOCKED 
  i2c-adap-ibm_ocp.c, i2c-elektor.c, i2c-pcf-epp.c : Moved driver_lock to
           module level and renamed to irq_driver_lock to avoid conflict with
           driver_lock semaphore in i2c-core.
  i2c-algo-8xx.c: Replaced deprecated save_flags(flags); cli() with 
           local_irq_save(flags); and restore_flags(flags) with
           local_irq_restore(flags);
  i2c-core.c: Remove buffer size limit in i2cproc_bus_read();
              add initializations for modules added to mkpatch.
  i2c-id.h: Add driver IDs for MPC824X, SIS630, SIS645

2.6.4 (20020719)        (in kernel 2.5.32)
  doc/i2c-old-porting: New
  i2c.h: Add defines for SMBus 2.0
  i2c-algo-8xx.[ch]: Compile updates, Add GPL
  i2c-algo-bit.c: Wait for clock low extension by slow devices;
                  add cond_resched() for 2.5 kernels    
  i2c-algo-ibm_ocp.[ch], i2c-adap-ibm_ocp.c: renamed from *ppc405*, rewritten
                  to support the ppc4xx kernel and multiple 4xx devices
  i2c-core.c: Add SMBus 2.0 PEC and Block Process Call support;
              change back to 'old' CONFIG names;
              fix i2c emulated process call
  i2c-dev.c: Add SMBus 2.0 PEC and Block Process Call support
  i2c-dev.h: Add SMBus 2.0 Block Process Call support
  i2c-frodo.c: New. Support for I2C on Frodo (2d3D, Inc. SA-1110 Dev Board).
  i2c-id.h: Add driver IDs for Savage 4, smbus-arp, smbus-alert, DS1307,
            SA-1110, SMSC47M1, ADV717x, ZR36067, ZR36120, VT1211, LM92, Frodo.
  i2c-pcf-epp.c: Remove compile warning
  i2c-proc.c: Check kmalloc() return code (sync with kernel 2.4.18)
  i2c-rpx.c: Compile updates
  mkpatch: Change back to 'old' CONFIG names
  Makefiles: For 2.4+ kernels, modules now install in
             kernel/drivers/i2c , not misc/ , and
             removes old versions in misc/ .
             Don't compile i2c-philips-par if no CONFIG_PARPORT.
             Change back to 'old' CONFIG names.

2.6.3 (20020322)        (in kernel 2.5.24)
  TODO: Many updates
  Config.in: i2c-proc requires sysctl
  doc/i2c-velleman: New
  drivers (all): Add message loglevels to printk's
  i2c.h: Add defines for 2-byte address block reads/writes, SAA7108
  i2c-core.c, i2c-dev.h: Add SMBus emluated i2c block reads
  i2c-core.c: Increase max buffer size for /proc/bus/i2c-x handler
  i2c-pcf-epp.c: Fix so it compiles
  i2c-philips-par.c: Check return code of parport_claim_or_block()
  i2c-proc.[ch]: Change i2c_sysctl_real 3rd arg to unsigned for kernel 2.2.19;
                 printk if no sysctl support in kernel
  mkpatch: Sync with kernel 2.4.15 (Configure.help)
  Module.mk: Add i2c-pcf-epp

2.6.2 (20011118)
  drivers (all): Add version to printk
  drivers (all): sync with kernel 2.4.11 (Add MODULE_LICENSE("GPL"))
  i2c-algo-8xx.c: Fix nasty cache problem
  i2c-algo-pcf.c: Fix detection for some boards (PIN bit)
  i2c-core.c: Don't redefine init_MUTEX() for kernels 2.2.18+;
              fix CONFIG_xxx inconsistencies for i2c-elektor, i2c-elv,
              i2c-philips-par, i2c-velleman
  i2c-elektor.c: Fix segfault when module not inserted, and
                 small IRQ issue.
  i2c-id.h: Add device IDs for Fujitsu-Siemens Poseidon and Scylla;
            sync with kernel 2.4.10 (ITE IIC id's); add SAA7134 ID;
            add PCF8591 ID.
  mkpatch: Fix CONFIG_xxx inconsistencies for i2c-elektor, i2c-elv,
           i2c-philips-par, i2c-velleman

2.6.1 (20010830)        (in kernel 2.4.13)
  drivers (all): Sync with kernel 2.4.2 (malloc.h -> slab.h)
  i2c-core.c: Fix iteration bug in i2c_get_client();
              initialize i2c-proc if built-in.
  i2c-dev.c: Sync with kernel 2.4.9 (i2cdev_lseek -> no_llseek)
  i2c-id.h: Add device ID for Chrontel 700X driver;
            add ID for primitive parallel port driver.
  i2c-pport.c: New - not mkpatched by default
  mkpatch/Config.in: PPC405 fix

2.6.0 (20010612)
  Makefile: Added support for alpha architecture
  i2c.h: Add #defines from lm_sensors i2c-isa.h
  i2c-algo-8xx.[ch]: New - not built or mkpatched by default
  i2c-algo-pcf.c: Increase I2C clock speed from 6.25 kHz to 50 kHz;
                  add detect code; remove test_bus function;
                  add support for multiple messages (proper generation
                  of stop/repstart sequences)
  i2c-algo-ppc405.[ch]: New - not built or mkpatched by default
  i2c-dev.c: Fix cleanup
  i2c-elektor.c: Add Alpha detection; add support for memory mapped 8584
                 behind a PCI bridge on Alphas; set interrupt bit correctly
  i2c-elektor.h: Comment out unused structure for now
  i2c-id.h: Add device ID's from lm_sensors sensors.h; add DEC Tsunami;
            added ID's for VPX32XX, DRP3510, SP5055, STV0030.
  i2c-ppc405.[ch]: New - not built or mkpatched by default
  i2c-ppc405adap.h: New
  i2c-proc.[ch]: New, from lm_sensors sensors.[ch]
  i2c-rpx.c: New - not built or mkpatched by default
  mkpatch: Add support for i2c-proc.[ch]

2.5.5 (20010115)        (in kernel 2.4.0-prerelease)
  mkpatch no longer supports 2.3 kernels
  i2c-core.c: Fix SMBus emulated i2c block writes

2.5.4 (20001012)
  i2c-id.h: Add VES1893, VES1820, SAA7113, TDA8444
  i2c-pcf-epp.c: New (no .h file, not compiled or patched to kernel)

2.5.3 (20001008)
  i2c-dev.c: Fix bug that MOD_COUNT was incremented instead of decremented
             on close; add devfs support.
  i2c-id.h: Add algorithms for ACPI and ACCESS.bus
  i2c-id.h: Add smart battery devices
  i2c-id.h: Add ALI 1535 device
  i2c-core.c, i2c-dev.c, i2c-dev.h, i2c.h: Add i2c block write support

2.5.2 (20000709)
  i2c-philips-par: Now compiles on all 2.2 kernels
  i2c-core: Corrected some SMBus block commands-related stuff
  i2c-core: Much better error checking in (de)registering functions
  i2c-core: Saner and now even documented handling of dummy drivers

2.5.1 (20000618) and older:
  No data available