scd: Improve watching USB device removal.
* scd/apdu.c(struct reader_table_s): Add require_get_status. (apdu_connect): Change return value meaning. Call apdu_reset here. * scd/app.c (app_new_register): Add require_get_status. (select_application): Use the return value of apdu_connect. (scd_update_reader_status_file): Call update_fdset_for_usb with checking all_have_intr_endp. (app_list_start, app_list_finish): Remove. * scd/ccid-driver.c (struct ccid_driver_s): Add transfer. (intr_cb): Don't call libusb_transfer in this callback. (ccid_require_get_status): New. (do_close_reader): Call libusb_transfer here. * scd/scdaemon.c (update_fdset_for_usb): Remove the first argument.
With Gnuk Token, it works fine as expected. With Gemalto reader,
intr_cb is not called when card is removed. So, the macro
LIBUSB_WORKS_EXPECTED_FOR_INTERRUPT_ENDP is not defined yet.
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>