---
title: ctl_sendsize
framework: Kernel
role: symbol
role_heading: Instance Property
platforms: [macOS 10.13+]
path: kernel/kern_ctl_reg/1809220-ctl_sendsize
---

# ctl_sendsize

Override the default send size. If set to zero, the default send size will be used, and this default value is set to this field to be retrieved by the caller.

## Declaration

```occ
u_int32_t ctl_sendsize;
```

## See Also

### Fields

- [ctl_name](kernel/kern_ctl_reg/1809212-ctl_name.md)
- [ctl_id](kernel/kern_ctl_reg/1809214-ctl_id.md)
- [ctl_unit](kernel/kern_ctl_reg/1809215-ctl_unit.md)
- [ctl_flags](kernel/kern_ctl_reg/1809219-ctl_flags.md)
- [ctl_recvsize](kernel/kern_ctl_reg/1809224-ctl_recvsize.md)
- [ctl_connect](kernel/kern_ctl_reg/1809225-ctl_connect.md)
- [ctl_disconnect](kernel/kern_ctl_reg/1809228-ctl_disconnect.md)
- [ctl_send](kernel/kern_ctl_reg/1809230-ctl_send.md)
- [ctl_setopt](kernel/kern_ctl_reg/1809233-ctl_setopt.md)
- [ctl_getopt](kernel/kern_ctl_reg/1809236-ctl_getopt.md)