snd_pcm_lib_alloc_vmalloc_buffer(9) [centos man page]

SND_PCM_LIB_ALLOC_VM(9) 					   Sound Devices					   SND_PCM_LIB_ALLOC_VM(9)

NAME

       snd_pcm_lib_alloc_vmalloc_buffer - allocate virtual DMA buffer

SYNOPSIS

       int snd_pcm_lib_alloc_vmalloc_buffer(struct snd_pcm_substream * substream, size_t size);

ARGUMENTS

       substream
	   the substream to allocate the buffer to

       size
	   the requested buffer size, in bytes

DESCRIPTION

       Allocates the PCM substream buffer using vmalloc, i.e., the memory is contiguous in kernel virtual space, but not in physical memory. Use
       this if the buffer is accessed by kernel code but not by device DMA.

RETURN

       1 if the buffer was changed, 0 if not changed, or a negative error code.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   SND_PCM_LIB_ALLOC_VM(9)

libssh2_channel_write_ex(3)					  libssh2 manual				       libssh2_channel_write_ex(3)

NAME

       libssh2_channel_write_ex - write data to a channel stream blocking

SYNOPSIS

       #include <libssh2.h>

       ssize_t libssh2_channel_write_ex(LIBSSH2_CHANNEL *channel,
					int stream_id, char *buf,
					size_t buflen);

DESCRIPTION

       Write data to a channel stream. All channel streams have one standard I/O substream (stream_id == 0), and may have up to 2^32 extended data
       streams as identified by the selected stream_id. The SSH2 protocol currently defines a stream ID of 1 to be the stderr substream.

       channel - active channel stream to write to.

       stream_id - substream ID number (e.g. 0 or SSH_EXTENDED_DATA_STDERR)

       buf - pointer to buffer to write

       buflen - size of the data to write

       libssh2_channel_write(3) and libssh2_channel_write_stderr(3) are convenience macros for this function.

       libssh2_channel_write_ex(3) will use as much as possible of the buffer and put it into a single SSH protocol packet. This means that to get
       maximum performance when sending larger files, you should try to always pass in at least 32K of data to this function.

RETURN VALUE

       Actual number of bytes written or negative on failure.  LIBSSH2_ERROR_EAGAIN when it would otherwise block. While LIBSSH2_ERROR_EAGAIN is a
       negative number, it isn't really a failure per se.

ERRORS

       LIBSSH2_ERROR_ALLOC - An internal memory allocation call failed.

       LIBSSH2_ERROR_SOCKET_SEND - Unable to send data on socket.

       LIBSSH2_ERROR_CHANNEL_CLOSED - The channel has been closed.

       LIBSSH2_ERROR_CHANNEL_EOF_SENT - The channel has been requested to be closed.

SEE ALSO

       libssh2_channel_open_ex(3) libssh2_channel_read_ex(3)

libssh2 0.15							    1 Jun 2007					       libssh2_channel_write_ex(3)