On Wed, Sep 12, 2018 at 10:50:52AM +0200, Guido Kiener wrote:
> +/*
> + * usbtmc_message->flags:
> + */
> +#define USBTMC_FLAG_ASYNC0x0001
> +#define USBTMC_FLAG_APPEND 0x0002
> +
> +struct usbtmc_message {
> + __u32 transfer_size; /* size of bytes to transfer */
> +
The new ioctl USBTMC_IOCTL_WRITE sends a generic message to bulk OUT.
This ioctl is used for vendor specific or asynchronous I/O as well.
The message is split into chunks of 4k (page size).
Message size is aligned to 32 bit boundaries.
With flag USBTMC_FLAG_ASYNC the ioctl is non blocking.
With
