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| author | Matt Johnston <matt@codeconstruct.com.au> | 2021-11-15 05:49:22 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-15 17:11:24 +0300 |
| commit | 84a107e68b34217eff536e81a6a6f419ee0d0f7e (patch) | |
| tree | 3beaf1ebf78e6a4330445b81b4dba7b78dc8b453 /include/uapi/linux/i2c-dev.h | |
| parent | 13cae4a104d2b7205696229ba85d34cc035f8c84 (diff) | |
| download | linux-84a107e68b34217eff536e81a6a6f419ee0d0f7e.tar.xz | |
i2c: dev: Handle 255 byte blocks for i2c ioctl
I2C_SMBUS is limited to 32 bytes due to compatibility with the
32 byte i2c_smbus_data.block
I2C_RDWR allows larger transfers if sufficient sized buffers are passed.
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/i2c-dev.h')
| -rw-r--r-- | include/uapi/linux/i2c-dev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/i2c-dev.h b/include/uapi/linux/i2c-dev.h index 1c4cec4ddd84..46ce31d42f7d 100644 --- a/include/uapi/linux/i2c-dev.h +++ b/include/uapi/linux/i2c-dev.h @@ -39,12 +39,14 @@ /* This is the structure as used in the I2C_SMBUS ioctl call */ +#ifndef __KERNEL__ struct i2c_smbus_ioctl_data { __u8 read_write; __u8 command; __u32 size; union i2c_smbus_data __user *data; }; +#endif /* This is the structure as used in the I2C_RDWR ioctl call */ struct i2c_rdwr_ioctl_data { |