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Clarify description of ->ucom_read method.

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From when I was trying to figure out what's wrong with uftdi reading
from a beaglebone last month.  (Still haven't figured that out!)
This commit is contained in:
riastradh 2012-08-05 01:58:36 +00:00
parent cf510d3400
commit 5bc0a6401f
1 changed files with 5 additions and 5 deletions
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10
share/man/man9/ucom.9
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@ -1,4 +1,4 @@
.\" $NetBSD: ucom.9,v 1.15 2008/04/30 13:10:58 martin Exp $
.\" $NetBSD: ucom.9,v 1.16 2012/08/05 01:58:36 riastradh Exp $
.\"
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd December 20, 2005
.Dd July 9, 2012
.Dt UCOM 9
.Os
.Sh NAME
@ -169,11 +169,11 @@ called just after the
driver closes the bulk pipes for the port.
.It Fn "void (*ucom_read)" "void *sc, int portno, u_char **ptr, uint32_t *count"
if the data delivered on the bulk pipe is not just the raw input characters
this routine needs to adjust
this routine needs to increment
.Fa ptr
and
by as many characters to skip from the start of the raw input and decrement
.Fa count
so that they tell where to find the given number of raw characters.
by as many characters to truncate from the end of the raw input.
.It Fn "void (*ucom_write)" "void *sc, int portno, u_char *dst, u_char *src, uint32_t *count"
if the data written to the bulk pipe is not just the raw characters then
this routine needs to copy