This patch (as872) adds a device table entry and a new quirk flag to the usblp driver for the Seiko Epson Receipt printer. This printer returns Vendor-Specific values for bInterfaceClass and bInterfaceSubClass, but the bInterfaceProtocol value is valid and it works with usblp. The new quirks flag tells the driver to ignore the Class and SubClass values in the interface descriptor.
Signed-off-by: Alan Stern <[EMAIL PROTECTED]> CC: Vojtech Pavlik <[EMAIL PROTECTED]> --- Index: usb-2.6/drivers/usb/class/usblp.c =================================================================== --- usb-2.6.orig/drivers/usb/class/usblp.c +++ usb-2.6/drivers/usb/class/usblp.c @@ -202,6 +202,7 @@ struct quirk_printer_struct { #define USBLP_QUIRK_BIDIR 0x1 /* reports bidir but requires unidirectional mode (no INs/reads) */ #define USBLP_QUIRK_USB_INIT 0x2 /* needs vendor USB init string */ +#define USBLP_QUIRK_BAD_CLASS 0x4 /* descriptor uses vendor-specific Class or SubClass */ static const struct quirk_printer_struct quirk_printers[] = { { 0x03f0, 0x0004, USBLP_QUIRK_BIDIR }, /* HP DeskJet 895C */ @@ -218,6 +219,7 @@ static const struct quirk_printer_struct { 0x0409, 0xf0be, USBLP_QUIRK_BIDIR }, /* NEC Picty920 (HP OEM) */ { 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */ { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut <[EMAIL PROTECTED]> */ + { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */ { 0, 0 } }; @@ -1048,7 +1050,8 @@ static int usblp_select_alts(struct usbl ifd = &if_alt->altsetting[i]; if (ifd->desc.bInterfaceClass != 7 || ifd->desc.bInterfaceSubClass != 1) - continue; + if (!(usblp->quirks & USBLP_QUIRK_BAD_CLASS)) + continue; if (ifd->desc.bInterfaceProtocol < USBLP_FIRST_PROTOCOL || ifd->desc.bInterfaceProtocol > USBLP_LAST_PROTOCOL) @@ -1232,6 +1235,7 @@ static struct usb_device_id usblp_ids [] { USB_INTERFACE_INFO(7, 1, 1) }, { USB_INTERFACE_INFO(7, 1, 2) }, { USB_INTERFACE_INFO(7, 1, 3) }, + { USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */ { } /* Terminating entry */ }; ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel