diff options
| -rw-r--r-- | drivers/usb/class/usblp.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 63e50a1f139..6584cf00f7f 100644 --- a/drivers/usb/class/usblp.c +++ b/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 quirk_printers[] = { { 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 <kernel@zut.de> */ + { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */ { 0, 0 } }; @@ -1048,7 +1050,8 @@ static int usblp_select_alts(struct usblp *usblp) 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 */ }; |