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bufconfig support

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This commit is contained in:
David Schleef 2001-03-01 21:58:37 +00:00
parent e5a7e10668
commit 93c44d29a1
1 changed files with 46 additions and 0 deletions
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46
lib/get.c
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@ -150,3 +150,49 @@ comedi_range * comedi_get_range(comedi_t *it,unsigned int subdevice,unsigned int
int comedi_get_buffer_size(comedi_t *it,unsigned int subd)
{
comedi_bufconfig bc;
int ret;
memset(&bc,0,sizeof(bc));
bc.subdevice = subd;
ret = ioctl(it->fd, COMEDI_BUFCONFIG, &bc);
if(ret<0)return -1;
return bc.size;
}
int comedi_get_max_buffer_size(comedi_t *it,unsigned int subd)
{
comedi_bufconfig bc;
int ret;
memset(&bc,0,sizeof(bc));
bc.subdevice = subd;
ret = ioctl(it->fd, COMEDI_BUFCONFIG, &bc);
if(ret<0)return -1;
return bc.maximum_size;
}
int comedi_set_buffer_size(comedi_t *it,unsigned int subd,int size)
{
comedi_bufconfig bc;
int ret;
memset(&bc,0,sizeof(bc));
bc.subdevice = subd;
bc.size = size;
ret = ioctl(it->fd, COMEDI_BUFCONFIG, &bc);
if(ret<0)return -1;
return bc.size;
}