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FMC DEL 1ns 4cha - Software
Commit ae601b1a authored by Alessandro Rubini's avatar Alessandro Rubini
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lib: add optional tracing of open/close 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent eb8e9d95
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Showing with 12 additions and 4 deletions
lib/fdelay-init.c
View file @ ae601b1a
......@@ -122,17 +122,20 @@ void fdelay_exit(void)
}
/* Open one specific device. -1 arguments mean "not installed" */
struct fdelay_board *fdelay_open(int offset, int dev_id)
struct fdelay_board *fdelay_open(int index, int dev_id)
{
struct __fdelay_board *b = NULL;
int i;
if (offset >= fd_nboards) {
if (fdelay_is_verbose())
fprintf(stderr, "called: %s(index %i, dev_id 0x%x);\n",
__func__, index, dev_id);
if (index >= fd_nboards) {
errno = ENODEV;
return NULL;
}
if (offset >= 0) {
b = fd_boards + offset;
if (index >= 0) {
b = fd_boards + index;
if (dev_id >= 0 && dev_id != b->dev_id) {
errno = EINVAL;
return NULL;
......@@ -166,6 +169,8 @@ struct fdelay_board *fdelay_open_by_lun(int lun)
char path[sizeof(path_pattern) + 1];
int dev_id;
if (fdelay_is_verbose())
fprintf(stderr, "called: %s(lun %i);\n", __func__, lun);
ret = snprintf(path, sizeof(path), path_pattern, lun);
if (ret < 0 || ret >= sizeof(path)) {
errno = EINVAL;
......@@ -184,6 +189,9 @@ int fdelay_close(struct fdelay_board *userb)
__define_board(b, userb);
int j;
if (fdelay_is_verbose())
fprintf(stderr, "called: %s(index %i, dev_id 0x%x);\n",
__func__, b - fd_boards, b->dev_id);
for (j = 0; j < ARRAY_SIZE(b->fdc); j++) {
if (b->fdc[j] >= 0)
close(b->fdc[j]);
......
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