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scd: Only submit apdu_get_status when needed.

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* scd/apdu.c (apdu_dev_list_finish): Return Boolean value if
all device support INTERRUPT transfer.
* scd/ccid-driver.c (ccid_dev_scan_finish): Likewise.
* scd/app.c (app_new_register): Fix initial value of card_status.
(select_application): Call update_fdset_for_usb.
(scd_update_reader_status_file): Ditto.
* scd/scdaemon.c (update_fdset_for_usb, need_tick): New.
(handle_connections): Call handle_tick when select returns.
Let select watch USB file descriptors, too.
Call libusb_handle_events_timeout_completed for INTERRUPT transfer.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2017-01-26 22:02:41 +09:00
parent 9b06633c81
commit 881dcdfd84
7 changed files with 145 additions and 42 deletions
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2
scd/apdu.h
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@ -88,7 +88,7 @@ struct dev_list;
gpg_error_t apdu_init (void);
gpg_error_t apdu_dev_list_start (const char *portstr, struct dev_list **l_p);
void apdu_dev_list_finish (struct dev_list *l);
int apdu_dev_list_finish (struct dev_list *l);
/* Note, that apdu_open_reader returns no status word but -1 on error. */
int apdu_open_reader (struct dev_list *l);