Date: Thu, 30 Oct 2008 19:51:02 +0000 (UTC) From: Joerg Wunsch <joerg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r184484 - head/bin/chio Message-ID: <200810301951.m9UJp20Z060200@svn.freebsd.org>
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Author: joerg Date: Thu Oct 30 19:51:02 2008 New Revision: 184484 URL: http://svn.freebsd.org/changeset/base/184484 Log: When running a "chio return" operation using a physical source unit rather than a voltag name, do not set the CESR_VOLTAGS flags in the CHIOGSTATUS command requesting the current status. As voltags are an optional feature that must be handled as "reserved" by media changers not implementing the feature, always setting CESR_VOLTAGS resulted in the command being aborted with an `Invalid field in CDB', and consequently the "chio return" failed, for media changers that do not support voltags. MFC after: 1 week Modified: head/bin/chio/chio.c Modified: head/bin/chio/chio.c ============================================================================== --- head/bin/chio/chio.c Thu Oct 30 17:54:20 2008 (r184483) +++ head/bin/chio/chio.c Thu Oct 30 19:51:02 2008 (r184484) @@ -69,7 +69,7 @@ static const char *bits_to_string(ces_st static void find_element(char *, uint16_t *, uint16_t *); static struct changer_element_status *get_element_status - (unsigned int, unsigned int); + (unsigned int, unsigned int, int); static int do_move(const char *, int, char **); static int do_exchange(const char *, int, char **); @@ -969,7 +969,8 @@ do_return(const char *cname, int argc, c ++argv; --argc; /* Get the status */ - ces = get_element_status((unsigned int)type, (unsigned int)element); + ces = get_element_status((unsigned int)type, (unsigned int)element, + CHET_VT == type); if (NULL == ces) errx(1, "%s: null element status pointer", cname); @@ -1004,7 +1005,7 @@ usage: * should free() it when done. */ static struct changer_element_status * -get_element_status(unsigned int type, unsigned int element) +get_element_status(unsigned int type, unsigned int element, int use_voltags) { struct changer_element_status_request cesr; struct changer_element_status *ces; @@ -1020,7 +1021,8 @@ get_element_status(unsigned int type, un cesr.cesr_element_type = (uint16_t)type; cesr.cesr_element_base = (uint16_t)element; cesr.cesr_element_count = 1; /* Only this one element */ - cesr.cesr_flags |= CESR_VOLTAGS; /* Grab voltags as well */ + if (use_voltags) + cesr.cesr_flags |= CESR_VOLTAGS; /* Grab voltags as well */ cesr.cesr_element_status = ces; if (ioctl(changer_fd, CHIOGSTATUS, (char *)&cesr) == -1) {
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