g_file_storage.ko及g_multi.ko参数说明

[PATCH] USB: g_file_storage: export "stall" parameter

from[Linux Kernel Mailing List] 

Subject:[PATCH] USB: g_file_storage: export "stall" parameterFrom:Linux Kernel Mailing ListDate:Mon, 27 Jun 2005 17:45:09 -0700

 

tree 78a96a3c3b33626f168c11418027d316121d7f76parent 76f4af8efc72b6091d230cbe718cedca06d2d79eauthor Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Mon, 18 Apr 2005 20:43:25 -0400committer Greg Kroah-Hartman <gregkh@xxxxxxx> Tue, 28 Jun 2005 04:43:40 -0700[PATCH] USB: g_file_storage: export "stall" parameterThis patch changes the g_file_storage driver to make the "stall" moduleparameter generally available; currently it is available only if thetesting version of the module has been configured.  It also fixes a typoin a comment -- thanks, Pat!Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> drivers/usb/gadget/file_storage.c |   27 ++++++++++++++------------- 1 files changed, 14 insertions(+), 13 deletions(-)diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c--- a/drivers/usb/gadget/file_storage.c+++ b/drivers/usb/gadget/file_storage.c@@ -81,6 +81,10 @@  *     removable               Default false, boolean for removable media  *     luns=N                  Default N = number of filenames, number of  *                                     LUNs to support+ *     stall                   Default determined according to the type of+ *                                     USB device controller (usually true),+ *                                     boolean to permit the driver to halt+ *                                     bulk endpoints  *     transport=XXX           Default BBB, transport name (CB, CBI, or BBB)  *     protocol=YYY            Default SCSI, protocol name (RBC, 8020 or  *                                     ATAPI, QIC, UFI, 8070, or SCSI;@@ -91,14 +95,10 @@  *     buflen=N                Default N=16384, buffer size used (will be  *                                     rounded down to a multiple of  *                                     PAGE_CACHE_SIZE)- *     stall                   Default determined according to the type of- *                                     USB device controller (usually true),- *                                     boolean to permit the driver to halt- *                                     bulk endpoints  *  * If CONFIG_USB_FILE_STORAGE_TEST is not set, only the "file", "ro",- * "removable", and "luns" options are available; default values are used- * for everything else.+ * "removable", "luns", and "stall" options are available; default values+ * are used for everything else.  *  * The pathnames of the backing files and the ro settings are available in  * the attribute files "file" and "ro" in the lun<n> subdirectory of the@@ -342,14 +342,15 @@ static struct {        int             num_ros;        unsigned int    nluns; +       int             removable;+       int             can_stall;+        char            *transport_parm;        char            *protocol_parm;-       int             removable;        unsigned short  vendor;        unsigned short  product;        unsigned short  release;        unsigned int    buflen;-       int             can_stall;         int             transport_type;        char            *transport_name;@@ -360,11 +361,11 @@ static struct {        .transport_parm         = "BBB",        .protocol_parm          = "SCSI",        .removable              = 0,+       .can_stall              = 1,        .vendor                 = DRIVER_VENDOR_ID,        .product                = DRIVER_PRODUCT_ID,        .release                = 0xffff,       // Use controller chip type        .buflen                 = 16384,-       .can_stall              = 1,        };  @@ -380,6 +381,9 @@ MODULE_PARM_DESC(luns, "number of LUNs") module_param_named(removable, mod_data.removable, bool, S_IRUGO); MODULE_PARM_DESC(removable, "true to simulate removable media"); +module_param_named(stall, mod_data.can_stall, bool, S_IRUGO);+MODULE_PARM_DESC(stall, "false to prevent bulk stalls");+  /* In the non-TEST version, only the module parameters listed above  * are available. */@@ -404,9 +408,6 @@ MODULE_PARM_DESC(release, "USB release n module_param_named(buflen, mod_data.buflen, uint, S_IRUGO); MODULE_PARM_DESC(buflen, "I/O buffer size"); -module_param_named(stall, mod_data.can_stall, bool, S_IRUGO);-MODULE_PARM_DESC(stall, "false to prevent bulk stalls");- #endif /* CONFIG_USB_FILE_STORAGE_TEST */  @@ -2657,7 +2658,7 @@ static int check_command(struct fsg_dev                 }        } -       /* Check that the LUN values are oonsistent */+       /* Check that the LUN values are consistent */        if (transport_is_bbb()) {                if (fsg->lun != lun)                        DBG(fsg, "using LUN %d from CBW, "-To unsubscribe from this list: send the line "unsubscribe bk-commits-head" inthe body of a message to majordomo@xxxxxxxxxxxxxxxMore majordomo info at  http://vger.kernel.org/majordomo-info.html以上参考至：http://www.archivum.info/[e-mail]/2005-06/01198/(PATCH)-USB-g_file_storage-export-quot-stall-quot-parameter.html通用命令： run modprobe g_multi file=/dev/mmcblk1p1,/mnt/p1/static.img,/dev/mmcblk0p1 luns=3 ro=0,1,1 stall=0,0,0 removable=1,1,1 iSerialNumber=3000111 iProduct=zhdgnss iManufactuy=zhd_survey这里表示的是将linux设备的3个块设备进行PC映射显示，具体的属性设置可看上面的说明；