| 1 | i2c CHANGES file |
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| 2 | ----------------------- |
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| 3 | This is a list of the most important changes between 2.x versions. It is by |
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| 4 | no means complete, listing only user-visible changes which are interesting. |
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| 5 | The ultimate way to know what has changed is to run diff, or even neater, |
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| 6 | ask CVS about it: |
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| 7 | |
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| 8 | * Checkout the archive (see doc/cvs for how you can do this) |
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| 9 | * Determine which tags are valid, by running this command from the |
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| 10 | project root directory: |
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| 11 | cvs status -v -l Makefile |
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| 12 | Valid tags are usually like form V2-1-0 for version 2.1.0 |
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| 13 | * Ask cvs for the difference between two versions: |
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| 14 | cvs diff -r TAG1 -r TAG2 DIFF-OPTIONS |
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| 15 | for example: |
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| 16 | cvs diff -r V2-0-0 -r V2-0-1 -u |
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| 17 | |
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| 18 | ----------------------------------------------------------------------------- |
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| 19 | |
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| 20 | 2.8.3 (20040115) |
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| 21 | File i2c-rh.spec: Updated |
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| 22 | Makefile: Update Alpha CMODFLAGS (Daniel Nilsson) |
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| 23 | Makefiles: Remove -o and -g arguments to install |
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| 24 | i2c.h: Add I2C_M_RECV_LEN and I2C_M_RECV_PEC |
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| 25 | i2c-algo-bit.c: Add SMBus block read and block process call emulation |
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| 26 | i2c-core.c: Add SMBus block read and block process call emulation |
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| 27 | |
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| 28 | 2.8.2 (20031211) |
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| 29 | Makefiles: Fail if no kernel .config file exists |
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| 30 | i2c-algo-bit: Fix sclhi() for adapters that do not have getscl(); |
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| 31 | Enable bit_test for adapters that do not have getscl(); |
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| 32 | Mostly rewrite test_bus(), cleaner and probably faster. |
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| 33 | i2c-id.h: Add IDs for FSC Hermes, usbvision, and |
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| 34 | drivers found in the Linux 2.4.22 kernel. |
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| 35 | |
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| 36 | 2.8.1 (20031005) |
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| 37 | Modules (various): Fix includes for compilation on alpha |
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| 38 | i2c.h: Add utility function i2c_delay(1) |
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| 39 | i2c-algo-8xx.h: Header fix (Richard Laing) |
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| 40 | i2c-core.c: Trivial bugfix to i2c_check_addr() |
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| 41 | i2c-dev.c: Ioctl fixes: user/kernel bug, memory leak |
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| 42 | (Robert T. Johnson, Sergey Vlasov) |
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| 43 | i2c-elektor.c: Fix memory mapped I/O |
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| 44 | i2c-id.h: Add IDs for the LM90, ASB100, Radeon, Xeon, MAX6650 |
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| 45 | |
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| 46 | 2.8.0 (20030714) |
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| 47 | Interface changes: |
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| 48 | - File i2c-dev.h: remove all userspace code, moved to |
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| 49 | i2c-dev.h in lm_sensors2 package |
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| 50 | - Struct i2c_adapter: remove inc_use() and dec_use(), add owner, |
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| 51 | remove client_count, replace semaphore lock |
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| 52 | with semaphores bus and list. |
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| 53 | - Struct i2c_algorithm: add owner |
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| 54 | - Struct i2c_driver: remove inc_use() and dec_use() |
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| 55 | - Struct i2c_msg: type changes; add err and done |
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| 56 | - Struct i2c_smbus_ioctl_data, i2c_rdwr_ioctl_data: type changes |
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| 57 | - Remove controlling_mod argument in i2c_register_entry() |
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| 58 | - Remove i2c_inc_use_client() and i2c_dec_use_client() |
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| 59 | - Add i2c_client_command() |
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| 60 | Makefiles: Handle multiple UTS_RELEASE definitions in linux/version.h; |
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| 61 | Remove old gzipped modules; remove old misc directory if empty; |
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| 62 | Don't use /usr/include headers for modules; |
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| 63 | Remove pre-2.4 installation method; |
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| 64 | Run depmod after module installation |
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| 65 | Modules (all): Cleanups including |
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| 66 | - C99 initializers |
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| 67 | - Remove #ifdef MODULE |
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| 68 | - Remove #ifndef THIS_MODULE |
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| 69 | - Remove #ifndef MODULE_LICENSE |
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| 70 | - Remove init_MUTEX #define |
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| 71 | - Remove EXPORT_NO_SYMBOLS |
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| 72 | - Remove dummy xxx_command() definitions |
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| 73 | - Use module_init() and module_exit() |
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| 74 | drivers (several): make spinlock_t's static |
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| 75 | i2c-algo-biths.[ch]: (new) Rewrite of i2c-algo-bit with improved |
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| 76 | bus timing and error handling. |
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| 77 | This is not a drop-in replacement for i2c-algo-bit. |
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| 78 | Interface subject to change. |
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| 79 | i2c-core.c: Rewrite locking; |
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| 80 | Remove initialization of other modules in i2c_init_all() |
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| 81 | i2c-dev.c: Fixes from kernel 2.4.21-rc7 |
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| 82 | i2c-id.h: add IDs for i2c-algo-biths, W83627HF, LM85, nForce2, OMAHA, GUIDE, |
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| 83 | MPC107, IXP2000, IXP425, IOP3XX, UDA1342, S3VIA |
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| 84 | i2c-proc.c: Fix ignore and probe tests |
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| 85 | mkpatch: Remove patching of drivers/char/mem.c |
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| 86 | |
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| 87 | 2.7.0 (20021208) |
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| 88 | drivers (several): C99 initializers (sync w/ kernel 2.5.49); HZ fixes |
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| 89 | i2c.h: Add I2C_M_IGNORE_NAK, I2C_M_NO_RD_ACK to flags. |
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| 90 | i2c-algo-bit.c: Support I2C_M_IGNORE_NAK. Use time_after() with jiffies. |
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| 91 | Debug message improvements. Fix clock high time in sclhi(). |
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| 92 | i2c-algo-8xx.c: Several updates and cleanups |
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| 93 | i2c-algo-ibm_ocp.[ch], i2c-adap-ibm_ocp.c: Rename i2c_iic_[add,del]_bus to |
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| 94 | i2c_ocp... to avoid duplicate with i2c-algo-ite in kernel |
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| 95 | i2c-core.c: Fix emulated i2c block writes |
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| 96 | i2c-dev.c: Remove data copy limit |
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| 97 | i2c-id.h: Add driver IDs for smart battery, IPMI, BMC, FS451, AMD8111, |
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| 98 | SCx200 |
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| 99 | i2c-proc.h: Add SENSORS_INSMOD_8; add naming for new dummy adapters |
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| 100 | mkpatch: Fix export-objs |
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| 101 | doc/i2c-protocol: Comment new client flags, fix I2C_M_NOSTART samples. |
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| 102 | Makefile: Take kernel source location from /lib/modules/x.x.x/build; |
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| 103 | add flags for x86_64 compiles |
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| 104 | |
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| 105 | 2.6.5 (20020915) |
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| 106 | mkpatch: Fix i2c-algo-8xx.o target causing kernel to not compile; |
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| 107 | add doc/i2c-old-porting, i2c-algo-8xx.[ch], i2c-adap-ibm_ocp.c, |
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| 108 | i2c-algo-ibm_ocp.[ch], i2c-frodo, i2c-rpx, |
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| 109 | i2c-pport, i2c-pcf-epp. |
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| 110 | i2c-adap-ibm_ocp.c, i2c-elektor.c, i2c-pcf-epp.c : Replaced deprecated cli() |
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| 111 | and sti() with spin_lock_irq(&driver_lock); and |
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| 112 | spin_unlock_irq(&driver_lock); Added spinlock_t driver_lock = |
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| 113 | SPIN_LOCK_UNLOCKED |
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| 114 | i2c-adap-ibm_ocp.c, i2c-elektor.c, i2c-pcf-epp.c : Moved driver_lock to |
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| 115 | module level and renamed to irq_driver_lock to avoid conflict with |
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| 116 | driver_lock semaphore in i2c-core. |
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| 117 | i2c-algo-8xx.c: Replaced deprecated save_flags(flags); cli() with |
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| 118 | local_irq_save(flags); and restore_flags(flags) with |
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| 119 | local_irq_restore(flags); |
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| 120 | i2c-core.c: Remove buffer size limit in i2cproc_bus_read(); |
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| 121 | add initializations for modules added to mkpatch. |
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| 122 | i2c-id.h: Add driver IDs for MPC824X, SIS630, SIS645 |
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| 123 | |
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| 124 | 2.6.4 (20020719) (in kernel 2.5.32) |
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| 125 | doc/i2c-old-porting: New |
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| 126 | i2c.h: Add defines for SMBus 2.0 |
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| 127 | i2c-algo-8xx.[ch]: Compile updates, Add GPL |
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| 128 | i2c-algo-bit.c: Wait for clock low extension by slow devices; |
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| 129 | add cond_resched() for 2.5 kernels |
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| 130 | i2c-algo-ibm_ocp.[ch], i2c-adap-ibm_ocp.c: renamed from *ppc405*, rewritten |
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| 131 | to support the ppc4xx kernel and multiple 4xx devices |
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| 132 | i2c-core.c: Add SMBus 2.0 PEC and Block Process Call support; |
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| 133 | change back to 'old' CONFIG names; |
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| 134 | fix i2c emulated process call |
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| 135 | i2c-dev.c: Add SMBus 2.0 PEC and Block Process Call support |
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| 136 | i2c-dev.h: Add SMBus 2.0 Block Process Call support |
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| 137 | i2c-frodo.c: New. Support for I2C on Frodo (2d3D, Inc. SA-1110 Dev Board). |
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| 138 | i2c-id.h: Add driver IDs for Savage 4, smbus-arp, smbus-alert, DS1307, |
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| 139 | SA-1110, SMSC47M1, ADV717x, ZR36067, ZR36120, VT1211, LM92, Frodo. |
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| 140 | i2c-pcf-epp.c: Remove compile warning |
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| 141 | i2c-proc.c: Check kmalloc() return code (sync with kernel 2.4.18) |
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| 142 | i2c-rpx.c: Compile updates |
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| 143 | mkpatch: Change back to 'old' CONFIG names |
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| 144 | Makefiles: For 2.4+ kernels, modules now install in |
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| 145 | kernel/drivers/i2c , not misc/ , and |
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| 146 | removes old versions in misc/ . |
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| 147 | Don't compile i2c-philips-par if no CONFIG_PARPORT. |
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| 148 | Change back to 'old' CONFIG names. |
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| 149 | |
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| 150 | 2.6.3 (20020322) (in kernel 2.5.24) |
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| 151 | TODO: Many updates |
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| 152 | Config.in: i2c-proc requires sysctl |
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| 153 | doc/i2c-velleman: New |
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| 154 | drivers (all): Add message loglevels to printk's |
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| 155 | i2c.h: Add defines for 2-byte address block reads/writes, SAA7108 |
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| 156 | i2c-core.c, i2c-dev.h: Add SMBus emluated i2c block reads |
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| 157 | i2c-core.c: Increase max buffer size for /proc/bus/i2c-x handler |
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| 158 | i2c-pcf-epp.c: Fix so it compiles |
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| 159 | i2c-philips-par.c: Check return code of parport_claim_or_block() |
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| 160 | i2c-proc.[ch]: Change i2c_sysctl_real 3rd arg to unsigned for kernel 2.2.19; |
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| 161 | printk if no sysctl support in kernel |
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| 162 | mkpatch: Sync with kernel 2.4.15 (Configure.help) |
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| 163 | Module.mk: Add i2c-pcf-epp |
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| 164 | |
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| 165 | 2.6.2 (20011118) |
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| 166 | drivers (all): Add version to printk |
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| 167 | drivers (all): sync with kernel 2.4.11 (Add MODULE_LICENSE("GPL")) |
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| 168 | i2c-algo-8xx.c: Fix nasty cache problem |
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| 169 | i2c-algo-pcf.c: Fix detection for some boards (PIN bit) |
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| 170 | i2c-core.c: Don't redefine init_MUTEX() for kernels 2.2.18+; |
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| 171 | fix CONFIG_xxx inconsistencies for i2c-elektor, i2c-elv, |
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| 172 | i2c-philips-par, i2c-velleman |
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| 173 | i2c-elektor.c: Fix segfault when module not inserted, and |
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| 174 | small IRQ issue. |
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| 175 | i2c-id.h: Add device IDs for Fujitsu-Siemens Poseidon and Scylla; |
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| 176 | sync with kernel 2.4.10 (ITE IIC id's); add SAA7134 ID; |
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| 177 | add PCF8591 ID. |
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| 178 | mkpatch: Fix CONFIG_xxx inconsistencies for i2c-elektor, i2c-elv, |
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| 179 | i2c-philips-par, i2c-velleman |
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| 180 | |
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| 181 | 2.6.1 (20010830) (in kernel 2.4.13) |
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| 182 | drivers (all): Sync with kernel 2.4.2 (malloc.h -> slab.h) |
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| 183 | i2c-core.c: Fix iteration bug in i2c_get_client(); |
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| 184 | initialize i2c-proc if built-in. |
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| 185 | i2c-dev.c: Sync with kernel 2.4.9 (i2cdev_lseek -> no_llseek) |
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| 186 | i2c-id.h: Add device ID for Chrontel 700X driver; |
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| 187 | add ID for primitive parallel port driver. |
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| 188 | i2c-pport.c: New - not mkpatched by default |
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| 189 | mkpatch/Config.in: PPC405 fix |
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| 190 | |
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| 191 | 2.6.0 (20010612) |
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| 192 | Makefile: Added support for alpha architecture |
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| 193 | i2c.h: Add #defines from lm_sensors i2c-isa.h |
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| 194 | i2c-algo-8xx.[ch]: New - not built or mkpatched by default |
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| 195 | i2c-algo-pcf.c: Increase I2C clock speed from 6.25 kHz to 50 kHz; |
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| 196 | add detect code; remove test_bus function; |
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| 197 | add support for multiple messages (proper generation |
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| 198 | of stop/repstart sequences) |
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| 199 | i2c-algo-ppc405.[ch]: New - not built or mkpatched by default |
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| 200 | i2c-dev.c: Fix cleanup |
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| 201 | i2c-elektor.c: Add Alpha detection; add support for memory mapped 8584 |
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| 202 | behind a PCI bridge on Alphas; set interrupt bit correctly |
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| 203 | i2c-elektor.h: Comment out unused structure for now |
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| 204 | i2c-id.h: Add device ID's from lm_sensors sensors.h; add DEC Tsunami; |
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| 205 | added ID's for VPX32XX, DRP3510, SP5055, STV0030. |
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| 206 | i2c-ppc405.[ch]: New - not built or mkpatched by default |
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| 207 | i2c-ppc405adap.h: New |
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| 208 | i2c-proc.[ch]: New, from lm_sensors sensors.[ch] |
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| 209 | i2c-rpx.c: New - not built or mkpatched by default |
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| 210 | mkpatch: Add support for i2c-proc.[ch] |
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| 211 | |
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| 212 | 2.5.5 (20010115) (in kernel 2.4.0-prerelease) |
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| 213 | mkpatch no longer supports 2.3 kernels |
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| 214 | i2c-core.c: Fix SMBus emulated i2c block writes |
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| 215 | |
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| 216 | 2.5.4 (20001012) |
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| 217 | i2c-id.h: Add VES1893, VES1820, SAA7113, TDA8444 |
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| 218 | i2c-pcf-epp.c: New (no .h file, not compiled or patched to kernel) |
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| 219 | |
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| 220 | 2.5.3 (20001008) |
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| 221 | i2c-dev.c: Fix bug that MOD_COUNT was incremented instead of decremented |
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| 222 | on close; add devfs support. |
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| 223 | i2c-id.h: Add algorithms for ACPI and ACCESS.bus |
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| 224 | i2c-id.h: Add smart battery devices |
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| 225 | i2c-id.h: Add ALI 1535 device |
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| 226 | i2c-core.c, i2c-dev.c, i2c-dev.h, i2c.h: Add i2c block write support |
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| 227 | |
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| 228 | 2.5.2 (20000709) |
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| 229 | i2c-philips-par: Now compiles on all 2.2 kernels |
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| 230 | i2c-core: Corrected some SMBus block commands-related stuff |
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| 231 | i2c-core: Much better error checking in (de)registering functions |
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| 232 | i2c-core: Saner and now even documented handling of dummy drivers |
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| 233 | |
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| 234 | 2.5.1 (20000618) and older: |
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| 235 | No data available |
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| 236 | |
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