Differential D56251
linux: add Linux i2c-dev ioctl compatibility support Authored by mr.yaoxin_outlook.com on Sat, Apr 4, 6:16 AM. Tags None Referenced Files
Details Implement Linux I2C ioctl translation in the Linux compatibility layer Signed-off-by: YAO, Xin <mr.yaoxin@outlook.com> This change is for Linux application to communicate with monitor using DDC/CI interface (I2C) on FreeBSD. can be tested by this tool https://github.com/ilovegrape/ddcci and the output is as below. root@test:~ # ./DellDevice i2c_write: ioctl returned -1, ioctl() error No such device or address Reading EDID 0x50@/dev/iic0 failed. Failed to get monitor info from /dev/iic0 i2c_write: ioctl returned -1, ioctl() error No such device or address Reading EDID 0x50@/dev/iic1 failed. Failed to get monitor info from /dev/iic1 0000: 00 ff ff ff ff ff ff 00 10 ac df 42 4c 50 35 48 | ...........BLP5H 0010: 0f 21 01 04 b5 3c 22 78 39 62 a5 ad 50 46 ab 24 | .!...<"x9b..PF.$ 0020: 0e 50 54 a5 4b 00 71 4f 81 80 a9 40 d1 c0 81 c0 | .PT.K.qO...@.... 0030: a9 c0 01 01 01 01 56 5e 00 a0 a0 a0 29 50 30 20 | ......V^....)P0 0040: 35 00 55 50 21 00 00 1a 00 00 00 ff 00 43 4e 30 | 5.UP!........CN0 0050: 37 33 4b 30 0a 20 20 20 20 20 00 00 00 fc 00 44 | 73K0. .....D 0060: 45 4c 4c 20 55 32 37 32 34 44 45 0a 00 00 00 fd | ELL U2724DE..... 0070: 00 30 78 b2 b2 3c 01 0a 20 20 20 20 20 20 01 ad | .0x..<.. .. isDellDevice: DEL Control 0xc8: +/38921/39 Control 0xc9: +/16645/65535 Control 0xfd: +/116/255 Fetched value: C8_value = 38921, C9_value = 16645, FD_value = 116 getScalar(C8_value = 38921) = "3" getSICode(FD_value = 116) = "T" getFWStage_H(C9_value = 16645) = "M" C9High = "1" getFWStage_L(C9_value = 16645, FD_value = 116) = "05" Model = DELL U2724DE Serial = CN073K0 Firmware Version = M3T105 /dev/iic10: Model = U2724DE, Serial = CN073K0, Firmware Version = M3T105 i2c_write: ioctl returned -1, ioctl() error Connection timed out Reading EDID 0x50@/dev/iic11 failed. Failed to get monitor info from /dev/iic11 i2c_write: ioctl returned -1, ioctl() error No such device or address Reading EDID 0x50@/dev/iic2 failed. Failed to get monitor info from /dev/iic2 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic3 failed. Failed to get monitor info from /dev/iic3 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic4 failed. Failed to get monitor info from /dev/iic4 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic5 failed. Failed to get monitor info from /dev/iic5 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic6 failed. Failed to get monitor info from /dev/iic6 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic7 failed. Failed to get monitor info from /dev/iic7 i2c_write: ioctl returned -1, ioctl() error Resource temporarily unavailable Reading EDID 0x50@/dev/iic8 failed. Failed to get monitor info from /dev/iic8 i2c_write: ioctl returned -1, ioctl() error Connection timed out Reading EDID 0x50@/dev/iic9 failed. Failed to get monitor info from /dev/iic9
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Event TimelineComment Actions Hi @pouria Since both imp and adrian accepted this revision, could you please help me or find some one to submit the change? Thank you for your support on it~ Regards, |