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FPGA Configuration Space
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17445a28
Commit
17445a28
authored
Sep 02, 2013
by
Alessandro Rubini
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sdbfs/userspace: hack around sscanf limitations
Signed-off-by:
Alessandro Rubini
<
rubini@gnudd.com
>
parent
f6051369
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gensdbfs.c
sdbfs/userspace/gensdbfs.c
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sdbfs/userspace/gensdbfs.c
View file @
17445a28
...
...
@@ -166,11 +166,21 @@ static int parse_config_line(struct sdbf *tree, struct sdbf *current, int line,
fprintf
(
stderr
,
"parse line %i for %s: %s
\n
"
,
line
,
current
->
fullname
,
t
);
if
(
sscanf
(
t
,
"vendor = %lli"
,
&
int64
)
==
1
)
{
/*
* Unfortunately, scanning as %i refuses "negative" hex values,
* saturating at 0x7fffffff. But %u refuses the leading 0x.
* In order to accept both positive decimal and hex, use %u first,
* and if it returns 0 use %x. I still think hex saturation is a bug.
*/
if
(
sscanf
(
t
,
"vendor = %llu"
,
&
int64
)
==
1
)
{
if
(
int64
==
0
)
sscanf
(
t
,
"vendor = %llx"
,
&
int64
);
p
->
vendor_id
=
htonll
(
int64
);
return
0
;
}
if
(
sscanf
(
t
,
"device = %li"
,
&
int32
)
==
1
)
{
if
(
sscanf
(
t
,
"device = %lu"
,
&
int32
)
==
1
)
{
if
(
int32
==
0
)
sscanf
(
t
,
"device = %lx"
,
&
int32
);
p
->
device_id
=
htonl
(
int32
);
return
0
;
}
...
...
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